Can't do both sides, but I have a Canada black 6 cent #460fi, 1967 - 1972 definitive series, printed on the gum side if that helps any. Sorry, not set up to do a scan but all it looks like is a slightly shiny version of the regular stamp. This will be an interesting post, I've never seen a stamp printed on both sides! This is a very cheap stamp so lots must have been printed that way. Will it be a reverse image from sitting on another stamp or will it be run twice through the printer?
If you do a google search "stamp printed on both sides" there are a few examples shown. There's quite a few ( 159 ) on E-Bay, I think most are offset but some actually have the same image on both sides.
https://www.ebay.ca/sch/i.html?_from=R40 ...
Only the overprint is printed twice (front/back) or the entire stamp.
Gerom,
Those look more like offsets caused by stacking freshly printed sheets on top of one another.
David
David,
At least on the French stamp, the front/back printing is perfectly centered, which I think could only be achieved by a first printing without paper (ink deposited on the support) and on the next printing, with paper this time, a double printing was made.
George
gerom
Thank you for your posting and excellent scans. Sorry but both scans are reverse or negative offsets. A true printed on both sides need postive images.
Your example are wonderful offsets.
1898
Interesting.
I assume that this front/back printing is not accidental.
I don't think anyone can accidentally make a print and then turn the sheet over and print it again.
I have seen stamps printed on paper that had maps or banknotes on the opposite side, but this situation occurs in crisis situations, when there is a lack of paper.
Do you know how it is technically possible (without the operator's intention) to realize this front/back printing?...
It may appear in tests when, for paper economy, it is printed on both sides.
But these are scraps and I suspect that they are destroyed and have no way of reaching collectors (only in case of theft)
Is there a catalog that mentions/prices these double printing stamps?
How's this for a very nice two-sided stamp? This one is VF MNH!
Mike
I ran into this while searching something else. Thought it was worth a look!!
Make sure you read the description, it's really interesting and gives a good idea how printings were organized.
https://siegelauctions.com/lot_grd.php?m ...
Thank you Harvey, most interesting read.
There is one on the site "1898Revenues", but with a twist, two different (one without ink) stamps.
If interested see "28 May 2021 1/8 cent proprietary with 50 cent beer stamp impressionson" in the 1898Revenues site
Just a thought. If a stamp is printed on both sides would the image not be the right way intead of being a mirror image on one side?
Opa, you are correct, but your posting loss me when you said " intead of being a mirror image on one side?", what is the context?
Sorry did not see that. It was meant to read "instead".
One more thought. It could be likley that sometimes a press or cylinder could run with no paper. This would cause an image transfer to the hammer or
cylinder. When paper is then put through to be printed you would have a mirror image on the gum side, I would think.
Opa, sorry I did not even see "intead" spelling, I was confused by "being a mirror image on one side?" context?
Trying to understand how the printed on gum side errors happen. Example, Unitrade Canada #2012av - printed on gum side, pane of 10. Since this was a self-adhesive the pane had backing paper and was the stamp printed on the backing paper? Was the front blank? Can you just peel off a blank stamp with gum and .....?
Haven't seen any photos of these to get an idea of how they occurred. Unitrade 2018 values it at only $250 so it can't be that rare. Does any SOR member have one or seen one? It would be nice to know.
Tad
I just saw this item on E-Bay (https://www.ebay.ca/itm/165428148238?) with a huge price. The person offering it for sale thought that since the back image was reversed it was much more interesting. I would think that just the opposite would be true. The way it is now only means the wet pages were stacked before dry. If the image were not reversed it would mean the sheet was run through twice which I would think would make it much rarer. Am I out to lunch on this?
Hi
I'd like to see if any members have printed on both sides stamps from ant country? Scan them if possible.
re: Printed on Both Sides
Can't do both sides, but I have a Canada black 6 cent #460fi, 1967 - 1972 definitive series, printed on the gum side if that helps any. Sorry, not set up to do a scan but all it looks like is a slightly shiny version of the regular stamp. This will be an interesting post, I've never seen a stamp printed on both sides! This is a very cheap stamp so lots must have been printed that way. Will it be a reverse image from sitting on another stamp or will it be run twice through the printer?
If you do a google search "stamp printed on both sides" there are a few examples shown. There's quite a few ( 159 ) on E-Bay, I think most are offset but some actually have the same image on both sides.
https://www.ebay.ca/sch/i.html?_from=R40 ...
re: Printed on Both Sides
Only the overprint is printed twice (front/back) or the entire stamp.
re: Printed on Both Sides
Gerom,
Those look more like offsets caused by stacking freshly printed sheets on top of one another.
David
re: Printed on Both Sides
David,
At least on the French stamp, the front/back printing is perfectly centered, which I think could only be achieved by a first printing without paper (ink deposited on the support) and on the next printing, with paper this time, a double printing was made.
George
re: Printed on Both Sides
gerom
Thank you for your posting and excellent scans. Sorry but both scans are reverse or negative offsets. A true printed on both sides need postive images.
Your example are wonderful offsets.
re: Printed on Both Sides
1898
Interesting.
I assume that this front/back printing is not accidental.
I don't think anyone can accidentally make a print and then turn the sheet over and print it again.
I have seen stamps printed on paper that had maps or banknotes on the opposite side, but this situation occurs in crisis situations, when there is a lack of paper.
Do you know how it is technically possible (without the operator's intention) to realize this front/back printing?...
It may appear in tests when, for paper economy, it is printed on both sides.
But these are scraps and I suspect that they are destroyed and have no way of reaching collectors (only in case of theft)
Is there a catalog that mentions/prices these double printing stamps?
re: Printed on Both Sides
How's this for a very nice two-sided stamp? This one is VF MNH!
Mike
re: Printed on Both Sides
I ran into this while searching something else. Thought it was worth a look!!
Make sure you read the description, it's really interesting and gives a good idea how printings were organized.
https://siegelauctions.com/lot_grd.php?m ...
re: Printed on Both Sides
Thank you Harvey, most interesting read.
There is one on the site "1898Revenues", but with a twist, two different (one without ink) stamps.
If interested see "28 May 2021 1/8 cent proprietary with 50 cent beer stamp impressionson" in the 1898Revenues site
re: Printed on Both Sides
Just a thought. If a stamp is printed on both sides would the image not be the right way intead of being a mirror image on one side?
re: Printed on Both Sides
Opa, you are correct, but your posting loss me when you said " intead of being a mirror image on one side?", what is the context?
re: Printed on Both Sides
Sorry did not see that. It was meant to read "instead".
One more thought. It could be likley that sometimes a press or cylinder could run with no paper. This would cause an image transfer to the hammer or
cylinder. When paper is then put through to be printed you would have a mirror image on the gum side, I would think.
re: Printed on Both Sides
Opa, sorry I did not even see "intead" spelling, I was confused by "being a mirror image on one side?" context?
re: Printed on Both Sides
Trying to understand how the printed on gum side errors happen. Example, Unitrade Canada #2012av - printed on gum side, pane of 10. Since this was a self-adhesive the pane had backing paper and was the stamp printed on the backing paper? Was the front blank? Can you just peel off a blank stamp with gum and .....?
Haven't seen any photos of these to get an idea of how they occurred. Unitrade 2018 values it at only $250 so it can't be that rare. Does any SOR member have one or seen one? It would be nice to know.
Tad
re: Printed on Both Sides
I just saw this item on E-Bay (https://www.ebay.ca/itm/165428148238?) with a huge price. The person offering it for sale thought that since the back image was reversed it was much more interesting. I would think that just the opposite would be true. The way it is now only means the wet pages were stacked before dry. If the image were not reversed it would mean the sheet was run through twice which I would think would make it much rarer. Am I out to lunch on this?