Latvia. Christmas and New Year.
30 Nov., 2011, press release

Small sheet have 10 stamps with fields decoration.
Circulation is: 35 sentims- 2 million stamps (200 000 sheetleets)
60 sentims 300 000 (30 000 sheetlets)
First Day Cancellation will be at Riga-51 post office.
Coming soon!
Preminary orders by e-mail info@stspb.ru