I had to test some of my medium format equipments. I decided to post these test photos as a comparison of lens from different eras. An anastigmat triplet from the 30s, a Heliar from the 40s, and a Tessar from the 50s. These photos are taken with *almost* the same lighting conditions, apertures are difference especially for the Tessar because it got brighter. On the same roll of film with the same development. Shanghai GP3 in XTOL.
Please do not compare lens sharpness since there are too many different variables between them, such as lights, angle, aperture, distance, hand shake. But rather, compare their subtle differences in aesthetic. And despite their age, they all look highly usable to me.