Included is an interesting historical brick for the construction of a church in Nowa Huta. This is the famous construction of the church "in the land without God". More here.
From the printer's signature one can deduce the date 1957.
Communist authorities approved the construction of the church in 1956.
Brick size 157 x 94 mm, beautifully preserved, only folded in half.
Included is an equally large (211 x 161 mm) and very impressive brick for the construction of a church, in Lodz's Widzew district (issue condition).