.
Proof positive from Flughafen Frankfurt - in the form of a "World Clock" - that
it's (always) Five o'Clock some-where ...

The cute panda pictorial cancel honors the 40th anniversary of the WWF (World Wildlife Fund) branch in Germany.
http://wwf.panda.org/wwf_offices/germany/ ... WWF Germany was founded 31 March 1963

That very attractive stamp reads PORTA NIGRA TRIER, and was postmarked (best I can tell) 20031215 at BRIEFZENTRUM (mail center) 10.
https://en.wikipedia.org/wiki/Porta_Nigra ... The Porta Nigra (Latin for black gate) is a large Roman city gate in Trier ... today the largest Roman city gate north of the Alps.
Catalog codes:
Mi:DE 2301AI, Sn:DE 2205, Yt:DE 2129, Sg:DE 3157, AFA:DE 3230
Issued on: 2002-12-27
Size: 22 x 26 mm
Perforation: 14
Printing: Offset lithography
Gum: Ordinary
Colors: Black | Greenish grey
Face value: 1 € - Euro
Print run: 119,180
Paper: fluorescent
Description:
grinding perforation 14; security additive in printing colour, under UV light mostly invisible; only from mini sheet
Cheers,
/s/ ikeyPikey