This is a discontinued letter set from San-X. It says "1997," so it's believed to be from almost 30 years ago. "PALETTE 623" Simple*Works SAN-X For standard mail Letter paper (2 colors) 60 sheets, envelopes (1 color) 20 sheets Letter paper size: 14.1 x 19.1 cm MADE IN JAPAN This item is unused, having been stored for a long time in the warehouse of a shop run by my grandparents, and has never been handled by anyone else. As it is a retro item, there are some discoloration and small stains (see photos 3, 8, 9, and 10). Please understand this before purchasing m(_ _)m ☆ I am also selling other discontinued San-X stationery. #cottonrose_sanx ☆ Other letter sets are here ↓ #cottonrose_letter ************************************* ☆ I am also selling Showa retro stationery and novelty items. #cottonrose_retro If items can be combined, I will offer a small discount, so please comment before purchasing (^-^) ※ I am also selling on other flea market apps, so I will prioritize the buyer who purchases first. Also, I may suddenly remove the listing. Thank you for your understanding. #PALETTE #LetterSet #SanX #sanx #Showa #Retro #Stationery #Stationery #Vintage #Rare #Rare #Heisei #Discontinued #LetterPaper #Envelope #LargeCapacity