Frank's Recent Activity
-
Frank replied to the thread Apparat zur Feststellung der Dioptrien des Augen (Dioptrimeter).
One wheel for + or - diopter, and one wheel for astigmatic correction.
Apr 12, 2026 at 10:59 PM -
Frank liked Marko's post in the thread Finds Thread.
I have a few more things to post, the flea market was slow today and I had stiff competition. I posted this $3 necklace on the jewelry...
Apr 12, 2026 at 10:50 PM