This is "Standard" size Goshuincho book
 
Measurements : 18 cm (7in)  x 12cm (4 3/4 in), thickness 1.3 cm (a half inch)
Book is accordion-fold binding. Japanese thick WASHI paper used.
 
Covering is pale green and dark green. This book has no white box , I think either side would be start. Pale green one has patterns , dark green is plain solid fabric.
 
Thank you for dropping by!
Natsu