Details are unknown, but I believe it's from over 40 years ago. It was stored in a dark place. I wiped it lightly. The head can be removed, but it's stiff and difficult to reattach. It's unclear if this is the original specification. There is some soiling, but it might come off with rubbing. There are also some scratches. It's a long-term home storage item. Will be shipped with simple packaging. Showa Retro Agricultural Cooperative Shinren (Credit Federation of Agricultural Cooperatives) Norinchukin Bank (Central Cooperative Bank for Agriculture and Forestry)