Book Baby Print have also been used for research. UCLA has a collection of Book Baby Print dating back to 1882 used for the study of the history of childhood, family, art, medicine, architecture, and other disciplines.
Here is the specification of the Book Baby Print,
Size
125 x 140mm
Pages
8 pages
Materials
PEVA outside, inside is foam
Packing
polybag with header card
Price
USD 0.6~0.9 basing on Book Baby Print quantity