I'm a bit perplexed trying to identify Soviet Zone GDR stamps. 1948 to 1952 specifically the Georg Hegel 60pf stamp. I found it in the Scott German Standard Vol 3, 2019 page 128, 10N42 60pf Dull Green. But there's not any mention of any sort of tagging, I have 4 of these that glow yellow/green under ultra violet light. Sorry for the poor cell camera picture. I couldn't figure out how to scan it with UV.
