July 24 Quiz: How's Your Eye For Detail?

What country/entity issued the stamps with this detail on them?
Two points for the first person to correctly identify it; one point if we need to post an easier version Saturday.

Mexico, MX 1363, 1984.

Canadag spotted it right off --Mexico!
Another quiz next Friday.
Points so far:
29 – Vayolene
20 – Johan Buvelot, 22Crows
19 – NigelC
18 –51Studebaker, Stamperix
16 – MaJu
12 – Canadag, StamperMA
9 – Jogil
8 – Pnjstamps
7 – Lithograving
6 – Bookbndrbob, Partime, Rogdcam
5 –GeoffHa, Rob Roy, Stamps101
4 – Angore, Blaamand, ModernStamps, Wkusau
3 – Tgswanner
2 – Glenn Estus, Noocassel, SCB, SforgCa,Willwood42, Yeapolska
1 – Florian
in search of the Grand High Most Excellent and Most Beloved and Fervently Envied Master of Postal Detail in Our Solar System.