| Added by |
 GEORGE
|
| General Description | Blue on blue-green underprint. Large three at center and upper corners. Back: Socialist arms at center. Watermark: Star in circle, repeated. Artists: Sokolov, circulation 1.12.1961 - 31.12.1972. Serial # prefix 3mm in height. |
| Catalog code | P#81b |
| Height | 56.00 mm |
| Width | 113.00 mm |
| Material | Paper |
| Printed by | STÁTNÍ TISKÁRNA CENIN - PRAHA (State Security Printing - Prague) (Czechia) |
| Catalog prices | VF $1.00 UNC $3.00 |
