Original Parts Case Thresher Irvins Model Shop Ohio USA Threshing Machine  1/32. 4 of the shells are cast iron and the other half is aluminum or diecast. Some of the parts are aluminum or diecast. The story of this stuff is from the estate that they came out of the person used to work for the company and would bring some stuff home. What is pictured is the lot you will be receiving. This is being sold as is. Please look over the pictures to determine condition. If you have any questions about the listing please feel free to ask and I will respond as quickly as possible. Buyer pays shipping unless otherwise stated and I do combined shipping however you will have to wait until the other item is done and I have sent you the invoice.. Payments are due within 5 days of winning the auction. Thanks for looking and happy bidding!!