First day envelope (traveled) Space of the USSR 1990 Mi 6152

€ 0⁹² 
1⁸⁰ BGN

7d 10h 11m

stf_57 (61)

First day envelope Space USSR 1977 Mi 4579

€ 0⁷⁴ 
1⁴⁵ BGN

7d 10h 11m

stf_57 (61)

First day envelope Space USSR 1981 Mi 5051 - 2

€ 0⁶⁴ 
1²⁵ BGN

7d 10h 11m

stf_57 (61)

Russia (USSR) 1991 Space- Aerospace Day 2

€ 3⁰⁷ 
6⁰⁰ BGN

3d 17h 16m

ASHALEV (113)

First day envelope Space USSR 1985 Mi 5496

€ 0⁷⁴ 
1⁴⁵ BGN

7d 10h 11m

stf_57 (61)

Envelope Space Cosmos USSR 1980 MI BL 145

€ 0⁶⁴ 
1²⁵ BGN

8d 17h 41m

stf_57 (61)

First day envelope Space USSR 1971 Mi 3868

€ 0⁸⁹ 
1⁷⁴ BGN

7d 10h 11m

stf_57 (61)

First day envelope Space Apollo-Union Poland 1975 Mi 2386-88

€ 0⁸⁴ 
1⁶⁴ BGN

7d 10h 11m

stf_57 (61)

First Day Cover 25 Years of the United Nations 1945 - 1970 1970

€ 0⁷⁴ 
1⁴⁵ BGN

6d 16h 21m

Ivodimitrov (1258)

First day envelope Space Poland 1978 Mi 2564

€ 0⁸⁴ 
1⁶⁴ BGN

7d 10h 11m

stf_57 (61)

First envelopes Space USSR 1986 Mi 5591-93 - 1, 2 and 3

€ 1²⁵ 
2⁴⁴ BGN

7d 10h 11m

stf_57 (61)

First day envelope Space Poland 1964 Mi 1553-60 - 1

€ 0⁸⁴ 
1⁶⁴ BGN

7d 10h 11m

stf_57 (61)

3779 Kingdom Bulgaria photo Major Nikolov from the General Staff

€ 30⁶⁸ 
60⁰⁰ BGN

2d 23h 38m

manhoni (590)

First day envelope Space (SPACE MAIL) USSR 1978 Mi 4735

€ 0⁸⁹ 
1⁷⁴ BGN

7d 10h 11m

stf_57 (61)

3779 Bulgaria 1989 - Congress of the Bulgarian Communist Party **

€ 0⁰⁸ 
0¹⁶ BGN

3d 1h 26m

Stamps_Tim (382)

Bulgaria 1989 BC 3779

€ 0⁰⁸ 
0¹⁶ BGN

6d 20h 6m

snake (288)

No. * 3779 Rene Bazen's old book "Anrieta"

€ 2⁵⁶ 
5⁰¹ BGN

3d 4h 36m

plamCO_70 (786)

First day envelope Space USSR 1978 Mi 4713

€ 0⁷⁴ 
1⁴⁵ BGN

7d 10h 11m

stf_57 (61)