PRESTO Stainless Steel Pressure Cooker 4qt 409A This was my Mother's 1970's vintage 4 quart Presto Stainless Steel pressure cooker in excellent condition. I bought this for Momma's birthday in June, 1975 and she used it only a few time to please me. She had a 50's vintage Presto that she just kept using and this ended up in the back of a cabinet. It includes the c1970's manual and cookbook, the trivet and the 500-626 Jiggler weight.