This is a concertina book with a rough weave cover
and a double page spread for each month, measuring 23 x 35 cms when open
across the two pages. to
Both were bought in about 1970 from a friend who had
discounted them as being too late in the development of the Japanese
book to be valuable, that the colours and some of the drawing was decadent.
They are fragile and seldom opened.