StampData
Stamp catalog
Lists
Joint Issues
Sheets
Notes
Albums
Collections
Catalogs
Things
Tools
Statistics
Quiz
Login
Prev:
Cog Locomotive "Tip Top", U.S.A. (1983)
Next:
cog railway
Cog Oscillating Waves
Short desc: Cog Oscillating Waves
This design is used by 1 stamp:
Denmark 5/4/1987 2.50k blk&red issue=50th Anniversary of the Academy of Technical Sciences perf=12.75
