1986. Portugal. 50th Anniversary of the Union of Engineers.

€ 0⁶⁶ 
1²⁹ BGN

8d 16h 21m

despot55 (406)

1962. Colombia. Proceedings of the Columbia University of Engineers.

€ 2²⁰ 
4³⁰ BGN

5d 15h 34m

despot55 (406)

1977. Belgium. 50th Anniversary of the Association of Engineers.

€ 0¹⁵ 
0²⁹ BGN

7d 16h 9m

despot55 (406)

1977. Spain. 50th Anniversary of the Philatelic Market in Madrid.

€ 0³¹ 
0⁶¹ BGN

6d 16h 14m

despot55 (406)

1977 France. 50th Congress of French Philatelic Societies

€ 0⁴⁶ 
0⁹⁰ BGN

2d 6h 24m

despot55 (406)

1977. USSR. 50th Anniversary of the Soviet Armed Forces.

€ 0³¹ 
0⁶¹ BGN

9d 22h 34m

despot55 (406)

1977. Monaco. 50th anniversary of the Grass Tennis Federation.

€ 0⁶⁶ 
1²⁹ BGN

19h 59m 18s

despot55 (406)

1977. Belgium. 50th Anniversary of the Association of Engineers.

€ 0¹⁵ 
0²⁹ BGN

7d 16h 9m

despot55 (406)

1977. Spain. 50th Anniversary of the Philatelic Market in Madrid.

€ 0³¹ 
0⁶¹ BGN

6d 16h 14m

despot55 (406)

1977. USSR. 50th Anniversary of the Soviet Armed Forces.

€ 0³¹ 
0⁶¹ BGN

9d 14h 29m

despot55 (406)

1977. Indonesia. Association of Southeast Asian Nations.

€ 2⁷¹ 
5³⁰ BGN

4d 15h 54m

despot55 (406)

1977. Belgium. Society of Engineers 50th Anniversary.

€ 0³⁶ 
0⁷⁰ BGN

16h 29m 18s

despot55 (406)

1977. Belgium. 50th Anniversary of the Association of Engineers.

€ 0¹⁵ 
0²⁹ BGN

7d 16h 9m

despot55 (406)

1962. Colombia. Proceedings of the Columbia University of Engineers.

€ 2²⁰ 
4³⁰ BGN

5d 15h 34m

despot55 (406)

1962. Colombia. Proceedings of the Columbia University of Engineers.

€ 2²⁰ 
4³⁰ BGN

5d 15h 34m

despot55 (406)

1972. Gibraltar. 200 years of Royal Engineers in Gibraltar.

€ 1⁷⁹ 
3⁵⁰ BGN

6d 19h 5m

despot55 (406)

1977. The Netherlands. Trade and Industry Association.

€ 0⁴¹ 
0⁸⁰ BGN

7d 16h 9m

despot55 (406)

1977. France. 50th Anniversary of North Atlantic flights.

€ 0⁴⁶ 
0⁹⁰ BGN

3d 7h 19m

despot55 (406)