The lighter blue could result from too much oil being used in the ink formula, or too much ink being wiped from the plate before it was applied to the paper. It's hard to tell from the images what might have happened to your stamp.
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 - 2026 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 UseAdvertise Here