Since I don't have permission to post the photos, forgive the serial links. I thought I would solicit thoughts here. If my thoughts seem reasonable concerning identifying Mizar instruments, I will contact the sellers and ask for the photos and permission to post them.
Note this recent eBay auction claims to be for a vintage Mizar refractor. Look at an enlarged version of the second photo to see the label. There is no maker's mark, but note the script used to identify it:
Okay. I saw this this past week (was going to bid if it had stayed below $100) and it rang a visual bell. I tracked it down. Look at this refractor apparently from a storage unit that's been featured on the eBay/CL thread on & off for several months - focus on the script on the label (again, no maker's mark):
Last example (which confirms that I am a chronic CL nut) - a very affordable 60mm refractor in the O.C. Again, note the script, and lack of a maker's mark:
Are others comfortable with identifying Mizar, not by a maker's mark, but by a characteristic script?