Seller: gnfmeyer (579) 100%, Location: Cantonment, Florida, Ships to: US, Item: 201713347392 Found in a long-closed hardware store, here is a Hudson Stauffer Knapsack Backpack Sprayer Duster. It is New Old Stock having never been used. It still has the original price sticker; although you can't read it. I opened the fill-scoop and found a bunch of parts inside. I'm guessing they belong to this unit. I'm guessing at the date of manufacture. The bellows is complete and free of tears. The shoulder straps are pristine. The back-pad is, well, unused! The roller cart came in parts and I assembled it to show how it looks. The wheels should be attached with cotter pins, but, they are not included. It has not been cleaned. It does have very slight storage wear.