2023 Quiz No. 9: How's Your Eye For Detail?

United Nations ?

I agree that it is United Nations

Berlin? Nein!

Am I right in thinking Don was correct, aside from not specifying "South" Viet-nam?

Greece??

HUZZAH! Massimo got it...United Nations!
Welcome, Massimo!
Another quiz next Friday.
Points so far:
56– Vayolene
28 – 22crows
27 -- 51Studebaker
24 – bookbndrbob
21 – NigelC
20 – Canadag, Johan Buvelot
18 – Jogil, MaJu, Stamperix
16 – pnjstamps, Willwood42
15 – lithograving, StevieG
13 – GeoffHa
12 – StamperMA9
10 – Stamps 101, tomonakaazu
9 – Moose
8 – Alie, Mrita75, Shermae
7 – Rob Roy, StevieG
6 – Partime, Rogdcam
5 – Zuerich4
4 – Angore, Blaamand, Calstamp, CaseyMagoo, hy-brasil, Linus, ModernStamps, Noocassel, RXC,
Wkusau
3 – Tgswanner
2 –Glenn Estus, Greadan, Kuikka, oldboldandbrash,PMStamp, revenuecollector, SCB,
SforgCa, Tongman65, wayner 11,Yeapolska
1 – Massimo, Moyock13, Florian
in search of the GHMEaMBaFEMoPDiOSS (Grand High Most Excellent and Most Beloved and Fervently Envied Master of Postal Detail in Our Solar System).