Postal envelopes - XIV Congress of the Union of Bulgarian philatelists

~1⁵⁴ €

5d 2h 54m

old_art (191)

3 PCS OLD ENVELOPES - EARLY SOCIETY / 2 /

~1⁵⁴ €

3d 3h 51m

pepo50 (1062)

Postal envelope - XII Congress of the SBF 1976

~0⁵¹ €

6d 17h 44m

old_art (191)

270773 / Bulgaria IPTZ 1989 FIP Day 58 FIP Congress

~0²¹ €

2d 19h 19m

Stamps_Tim (364)

Postal Envelope, Bulgaria, Sofia IX Congress BARS’77

~1⁰³ €

2d 8h 19m

opil (29)

First day postal envelope 80 Buzludzha Congress 1971

~0⁷² €

1d 17h 30m

trini (96)

Mailing envelopes - X World. trade union congress Havana

~0⁷⁷ €

1d 18h 9m

old_art (191)

WWF First Day Envelopes, Dominica - Hercules Beetle

~3⁰⁸ €

2d 0h 19m

megalodon81 (351)

2848 SF "Philhasardica 79", block 48 Congress of the IFP - BLOCK 4pc

~3⁰⁸ €

3d 21h 54m

plamen_0710 (15)

XIII BKP CONGRESS 1986 POSTAL ENVELOPE

~1⁵⁴ €

9d 7h 24m

luba_mateva (1163)

First day postal envelope 70 Buzludzha Congress 1961

~1²⁸ €

1d 17h 30m

trini (96)

IPTZ 2 st.print 10th Anniversary Esperanto Congress, Varna, 78

~0⁴¹ €

20h 4m 32s

boby42 (490)

2848 Bulgaria 1979 48 Congress of IFP. Block **

~0⁷⁴ €

1h 39m 37s

Stamps_Tim (364)

Postal Envelope - Cuba, World Trade Union Congress 1973

~0³⁶ €

4d 5h 2m

sk-phila (326)

270880 / pure Bulgaria IPTZ 1989 IFP Day IFP Congress

~0⁴⁶ €

2d 19h 19m

Stamps_Tim (364)

266665 / Bulgaria IPTZ 1984 - Pleven conference of IFP

~0²⁶ €

9d 6h 54m

Stamps_Tim (364)

Postal Envelope, Bulgaria X Congress Sofia 1982

~1⁰³ €

2d 10h 29m

opil (29)

First Day Postal Envelope Music Composers Lot 2 envelopes

~2⁰⁵ €

1d 4h 24m

stemi999 (251)