I started to take a picture then decided it was more complicated than a single picture!
The more I dug around, the more different styles I found. Some had sizes stamped as fractions, others had the fractions expressed as dashed numbers. Some had cross hatch knurling, straight bar knurling and knurled banding at different heights. Then I discovered the "Alloy Artifacts" listing for Indestro/Duro. Looks like I've got pieces of at least four different sets! But there's not much doubt what they are even if they are not labeled. I think my goal will be to match up one complete set and offer the residue to some other poor struggling soul!