StampData
Stamp catalog
Collections
Lists
Joint Issues
Sheets
Notes
Albums
Catalogs
Things
Tools
Statistics
Quiz
Login
Prev:
Akshar Deri
Next:
Aku Hirviniemi
Aktinometer
Short desc: Aktinometer
Things in this design:
manufacture
Aktinometer
This design is used by one stamp:
German Democratic Republic 1/24/1968 10pf issue=Potsdam Meteorological Observatory 75th
Record of changes
