My 1974 model Lyman 450 sizer had a linkage breakdown on Monday, 10-10-16. I went on line, found a current parts schematic, ordered the parts I needed. The mailman delivered them 10-15-16. I received a complete Lyman owner's booklet and product DVD in the package. It took less than 5 minutes to install the new handle linkage. I cannot be happier with Lyman's electronic order process.
I guess I missed a real treat by not talking to a living person in Customer Service at Lyman.