Title
SAPO copper punched disk sandwiched between glass
Catalog Number
102703831
Type
Physical Object
Date
Circa 1950
Manufacturer
Czechoslovak Academy of Sciences
Place Manufactured
Czechoslovakia
Dimensions
overall: 1/8 in x 6 3/8 in x 6 3/8 in
Category
Ephemera/other
Credit
Gift of Miro Valach