Grand Piano by Patricia Crawford Lobster by John Montroll, Animal Origami for the Enthusiast. Origami For the Connoisseur by Kasahara. The call number for papercraft is tt870, use this to cut down your search time. The paper formats defined by ISO in the A, B and C series are used today in nearly all countries apart from North America. E.g. B1 is between A1 and A0.
Larger sizes have smaller numbers.
The ISO DL envelope format has the dimensions 220 x 110 millimeters.