Stamp Community Family of Web Sites
Thousands of stamps, consistently graded, competitively priced and hundreds of in-depth blog posts to read
Stamp Community Forum
 
Username:
Password:
Save Password
Forgot your Password?

Welcome Guest! Need help? Got a question? Inherit some stamps?
Our stamp forum is completely free! Register Now!

Portugal & Colonies Chalk Surfaced Stamps

Previous Page
 
To participate in the forum you must log in or register.
Author Previous Topic Topic Next Topic
Page: of 2
Valued Member
United States
216 Posts
Posted 12/08/2019   1:17 pm  Show Profile Bookmark this reply Add EMaxim to your friends list  Get a Link to this Reply

Quote:
I have to look at the stamps under a microscope. Besides the overall shininess, some of the things I look for:
1. Sometimes you can see the top layer of chalk around the perforation holes. The chalk breaks off unevenly around the holes.
2. The ink does not soak into the stamp like it does with uncoated paper. I found this an especially useful observation with the pre-WWI Austrian definitive series.
3. Generally, you can't see the paper fibers.
4. The chalk surface may exhibit micro-cracks.


This is Trainwreck's method, taken from the thread that he mentions above. It's the one that works best for me too.
Send note to Staff  Go to Top of Page
Page: of 2 Previous Topic Topic Next Topic  
Previous Page
 
To participate in the forum you must log in or register.


Go to Top of Page
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2020 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited.
Privacy Policy / Terms of Use    Advertise Here
Stamp Community Forum © 2007 - 2020 Stamp Community Forums
It took 0.12 seconds to lick this stamp. Powered By: Snitz Forums 2000 Version 3.4.05