Koyo Sangyo Memphis Movement Hammer Japan 1980. Multi colored Memphis Movement hammer designed by Koyo Sangyo in 1980. Memphis hammer is in great vintage condition with little signs of use, a few scratches and one nick to a corner (see last photo for magnified view) measures 9 3/4 long by 4 3/4” wide by 1” in depth. Condition is Used. Shipped with USPS Priority Mail