100 Years Finnish Stamps, FINLANDIA '56 (1st Finnish Stamp)

LaPe 457W1 = Watermark 'X'.
LaPe 457W4 = Watermark 'Z'.

To determine watermark: hold text 'Suomi' at top, seen from backside.

Country:	Finland
Type:	Postage stamps
Nominal:	30 mk
Year:	1956
Size:	43 x 30 mm
Perforation:	Imperforate
Mintage:	372,146