Rare Yamano-ue Hotel Room Key Keychain

This is a room key type keychain from Surugadai's Yamano Ue Hotel. It was purchased before the temporary closure. It has not been used except for taking photos for this listing. Meiji University will be involved in its future operation, but how about this as a memento for those who have memories of the Yamano Ue Hotel, or as a souvenir or gift?
Returns are not accepted to prevent fraud.