Store Inventory Items with Age-Related Deterioration These are not the current sizes used in elementary schools. They are the smaller sizes used up until around the Showa 40s and 50s (1965-1984). See photos. They were shrink-wrapped, but the wrapping has deteriorated significantly due to age. Some items have yellowing and stains, although not all. I think the condition is not too bad considering they are from the Showa era. Price is for 10 books. Shipping via Yu-Packet Post is planned.