What we collect!

 

Stamporama Discussion Board Logo
For People Who Love To Talk About Stamps
Stamporama Discussion Board Logo
For People Who Love To Talk About Stamps
Stamporama Discussion Board Logo
For People Who Love To Talk About Stamps



What we collect!
What we collect!


Canada/Stamps : Guide to paper fluorescence

 

Author
Postings
Shibumi
Members Picture


11 Jan 2015
05:47:57pm
Determining paper fluorescence (F) is both art and science. Yes, there are guides - but for the average collector - not hard and fast standards that will give you a definitive answer to what you are looking at. Look on line for the "Gronbeck Jones Scale" (no relation) - it's very useful I find for grading. (I say look for it because I don't know where I found it).

I have a small sample file I use for testing made up of samples from Gronbeck-Jones and others. Use Unitrade for your guide stamps. Here's what I do........Hi-brite is the easiest. I use the centennial definitive 468B or 625 Xmas. For dull I go to 443 Xmas; F -> 561 Frontenac; light -> Fundy 726; LF -> 411i export; NF -> 505 Manitoba.

If you have difficulty in the middle ranges L-M you are not alone. It helps me to work with my UV light in total darkness but even then it's not totally guaranteed that you will get it right.

F is important because stamp values vary widely depending on it. I've just gone though a bunch of plate blocks, separating the $5 blocks from the $20 blocks - based only on F ratings.
Like 
2 Members
like this post.
Login to Like.

davidgjones.authorsxpress.com/2012/05/14/david-g-jones-author-of-the-school-of-sun-tzu/
        

 

Author/Postings
Members Picture
Shibumi

11 Jan 2015
05:47:57pm

Determining paper fluorescence (F) is both art and science. Yes, there are guides - but for the average collector - not hard and fast standards that will give you a definitive answer to what you are looking at. Look on line for the "Gronbeck Jones Scale" (no relation) - it's very useful I find for grading. (I say look for it because I don't know where I found it).

I have a small sample file I use for testing made up of samples from Gronbeck-Jones and others. Use Unitrade for your guide stamps. Here's what I do........Hi-brite is the easiest. I use the centennial definitive 468B or 625 Xmas. For dull I go to 443 Xmas; F -> 561 Frontenac; light -> Fundy 726; LF -> 411i export; NF -> 505 Manitoba.

If you have difficulty in the middle ranges L-M you are not alone. It helps me to work with my UV light in total darkness but even then it's not totally guaranteed that you will get it right.

F is important because stamp values vary widely depending on it. I've just gone though a bunch of plate blocks, separating the $5 blocks from the $20 blocks - based only on F ratings.

Like 
2 Members
like this post.
Login to Like.

davidgjones.authorsx ...
        

Contact Webmaster | Visitors Online | Unsubscribe Emails


User Agreement

Copyright © 2023 Stamporama.com