Gakken A5 size, price 850 yen each. First edition published in 1990. Condition: There is a stain of about 2mm on the top of the cover, and some age-related soiling on the top. There is some yellowing, scuffing, and soiling due to age, but otherwise it is clean. Shipping is not available on Saturdays, Sundays, and holidays. Please understand. If you are nervous or looking for something in new condition, please do not purchase. International shipping is not available. *The white areas in the image are due to light reflection.