Discussion - Member to Member Sales - Research Center
Discussion - Member to Member Sales - Research Center
Question to Portuguese related collectors: Have you done the same. Did you, and if so how did you handle this major rework (I guess it is several years old by now?). Is it worth the effort!
rrr..
Is there an easy way to tell apart the chalky and ordinary paper. I think glue discoloration may play a role in confusing the identification, and how do you do it on used stamps?
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Collect Portuguese Colonies. Am not an expert.
Agree, distinguishing btwn the varieties is quite challenging. My go-to person for this subject area has been Climber Steve (Denver area). Am not certain he is still active on this forum.
Assume you are aware/familiar with the “silver” test which can be used to distinguish mint issues. Although many collectors decline to use given concerns re it’s “destructive” nature.
Personally I do not believe there is an effective means of determination as it pertains to used stamps. So my compromise has been to assume every used issue (in my personal collection) is ordinary paper.
There has been active discussion re this topic across the past few years on other philatelic forums. Especially one in the Southern Hemisphere.
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There can be significant differences in values between the different printing types. So, yes, the revised catalogue numbers are important to do. When Scott completed the revision many years ago, Steiner updated his pages to reflect these changes across Portugal and all the colonies. For the most part it is not that difficult. Determining stamps with chalky paper was the challenge for me.
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Thanks Michael. Yes I downloaded and printed the up to date Steiner pages and it does help a lot. I am sure glad he did it.
The paper difference is hard to id, even when the stamps sit side by side, I am confused by it, except on pristine stamps, as glue discoloration and who knows what for used stamps, makes it a real challenge.
I wonder how many stamps I now need were discarded by me in the past, with the old category list implying I had them already.
Looking at listings on Hipstamps, there are a lot of dealers who have not updated their category numbers, and I guess if I look methodically I may find a stamp or two to fill my new spots within the old numbering scheme...but so much work!
I should not complain. It will be easier than the Mexico Exporta variations (also available on Steiner pages)!
rrr...
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Would the paper difference show up under UV light? Just a thought.
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It was worth trying anyway.
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With chalky paper I seem to recall that with decent magnification you can see a pitted type surface even when the stamp has been soaked off.
The torn ends of the perfs was also different somehow, perhaps not so fibrous.
Will look on the web tomorrow to see if I can find the relevant article.
Edit, here is one article. https://www.sandafayre.com/News/Stamp-Tricks-and-Tips-Chalk--Surfaced-Papers/?i=91
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My father had an extensive Portuguese Colonies collection. I kept it for myself for many years but a few years ago I decided that I would not continue collecting that area. I remember when I first created approval books for it - I went with the catalog #'s that were written under the stamps and I was using older catalogs to price them. Well I found out the hard way from a few experienced collectors here that I had some problems. I pulled out my newer catalogs and that is when I found out how much had changed. I had to correct many stamps I had up in my other selling site too. It was a real mess. When I discover some folders with duplicate stamps I cringe because I sometimes can not tell what variety i have. It has become too confusing now... Steve
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Approvals
I was about to list some Portuguese and Colonies Ceres stamps in an Approval Book, and realized that the Scott major rework of these has made it imperative to study and re-assemble my own collection within the new structure and the new category numbers. May have to print new pages, get my perf gage out, check my duplicates for what may now be a stamp I don't have, etc, etc...and it looks like a major task ahead!!
Question to Portuguese related collectors: Have you done the same. Did you, and if so how did you handle this major rework (I guess it is several years old by now?). Is it worth the effort!
rrr..
Is there an easy way to tell apart the chalky and ordinary paper. I think glue discoloration may play a role in confusing the identification, and how do you do it on used stamps?
Login to Like
this post
07:40:40am
re: Portugal and Portuguese Colonies Ceres.
Collect Portuguese Colonies. Am not an expert.
Agree, distinguishing btwn the varieties is quite challenging. My go-to person for this subject area has been Climber Steve (Denver area). Am not certain he is still active on this forum.
Assume you are aware/familiar with the “silver” test which can be used to distinguish mint issues. Although many collectors decline to use given concerns re it’s “destructive” nature.
Personally I do not believe there is an effective means of determination as it pertains to used stamps. So my compromise has been to assume every used issue (in my personal collection) is ordinary paper.
There has been active discussion re this topic across the past few years on other philatelic forums. Especially one in the Southern Hemisphere.
Login to Like
this post
09:57:46pm
re: Portugal and Portuguese Colonies Ceres.
There can be significant differences in values between the different printing types. So, yes, the revised catalogue numbers are important to do. When Scott completed the revision many years ago, Steiner updated his pages to reflect these changes across Portugal and all the colonies. For the most part it is not that difficult. Determining stamps with chalky paper was the challenge for me.
Login to Like
this post
Approvals
re: Portugal and Portuguese Colonies Ceres.
Thanks Michael. Yes I downloaded and printed the up to date Steiner pages and it does help a lot. I am sure glad he did it.
The paper difference is hard to id, even when the stamps sit side by side, I am confused by it, except on pristine stamps, as glue discoloration and who knows what for used stamps, makes it a real challenge.
I wonder how many stamps I now need were discarded by me in the past, with the old category list implying I had them already.
Looking at listings on Hipstamps, there are a lot of dealers who have not updated their category numbers, and I guess if I look methodically I may find a stamp or two to fill my new spots within the old numbering scheme...but so much work!
I should not complain. It will be easier than the Mexico Exporta variations (also available on Steiner pages)!
rrr...
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this post
re: Portugal and Portuguese Colonies Ceres.
Would the paper difference show up under UV light? Just a thought.
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this post
re: Portugal and Portuguese Colonies Ceres.
It was worth trying anyway.
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this post
Approvals
re: Portugal and Portuguese Colonies Ceres.
With chalky paper I seem to recall that with decent magnification you can see a pitted type surface even when the stamp has been soaked off.
The torn ends of the perfs was also different somehow, perhaps not so fibrous.
Will look on the web tomorrow to see if I can find the relevant article.
Edit, here is one article. https://www.sandafayre.com/News/Stamp-Tricks-and-Tips-Chalk--Surfaced-Papers/?i=91
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this post
Approvals
re: Portugal and Portuguese Colonies Ceres.
My father had an extensive Portuguese Colonies collection. I kept it for myself for many years but a few years ago I decided that I would not continue collecting that area. I remember when I first created approval books for it - I went with the catalog #'s that were written under the stamps and I was using older catalogs to price them. Well I found out the hard way from a few experienced collectors here that I had some problems. I pulled out my newer catalogs and that is when I found out how much had changed. I had to correct many stamps I had up in my other selling site too. It was a real mess. When I discover some folders with duplicate stamps I cringe because I sometimes can not tell what variety i have. It has become too confusing now... Steve
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