A few months ago i sold a 200mm F9 Aristostigmat in a Deckel Compur shutter. It was a very nice lens, reasonably sharp, a little low in contrast (Uncoated) and had lot's of movement on 8x10
I have the same focal lenght in a coated Cooke series VIIa and find that to be sligthly sharper and with a little bit better contrast.