My best guess is Cuitadella:

http://www.myfonts.com/fonts/emtype/ciutadella/

I do not think it is Cuitadella - in the sample the t has an uneven crossbar - At first I thought it was AvantGarde Condensed that had been messed with - but now I am still looking.

Cuitadella seems to be right. In the letterhead the T has an even crossbar ...

Yes, it looks like a cross between the default |t| and the alternate one: http://www.myfonts.com/fonts/emtype/ciutadella/medium/glyphs/547181/404

Yesss !! Thank you all.

Confirming Kevin's excellent call of Ciutadella. Top one has probably been customized (/t) because on second sample, it looks like they used the default /t.