This is a refill for a system notebook that my father used. It's from the "Walter Wolf" brand from back then, and I think it's a vintage item that's hard to find now. Walter Wolf Monthly Planning (Free): 30 sheets per pack x 3 packs *Since it appears to be unopened, I haven't confirmed the number of sheets inside. (Bonus 1) Monthly refill of the same size (no label): 1 set (Bonus 2) LACÉE Address Book Refill: (9 sheets) The size is "Mini 6-hole (pocket size)". Actual size: Approximately 126mm (height) x 78mm (width) It's a size that can be used with current mini 6-hole binders. ⭐︎"Walter Wolf" appeals to motorsports fans: It seems to be a brand that was popular in F1 and motorcycles in the 1970s and 80s. ⭐︎"LACÉE": The "LACÉE" address book (bonus) is also a brand of a long-established Japanese manufacturer (Raymay Fujii). Due to long-term storage, the packaging has some deterioration and dirt, but the main body is unused. I would be happy to sell it to someone who understands the possibility of a shortage of sheets or changes over time, and who likes retro stationery. Thank you for looking.