About the only project I completed this Summer was one involving an 8x10 Petzval lens that I picked up from Eddie. I made some adapters for it so that I could mount the lenses in a shutter in various configurations. I thought you'd like to see the results.
I took two sets of photos, one close and the other at a distance. I didn't get around to doing any at portrait distance, however.
I started with the cemented doublet in front, and the flint & crown pair in the back. The first photos are with the original Petzval design, i.e., flint forward, crown in the rear. The second are with the flint and crown reversed in the rear (the Dallmeyer flip).
Next I removed the doublet from the front, and used only the flint/crown pair in the rear, reversing the order of the two lenses.
Lastly, I mounted the flint and crown lenses separately, at barrel-length from one another, reversing their order also.
I'll put the photos in separate posts, so that I can mark them appropriately. My apologies for the differing exposures - most were guesses.