r/rangefinders

Hello. I recently picked up my first rangefinder (Wards am551). I’ve never used a rangefinder before but in doing some research, I realize the viewfinder should have a yellow box or something similar that indicates out of focus. However my viewfinder only has a border but nothing in the center. I’m assuming something is missing or broken. Can this be repaired? If so, any tips or recommendations on how to go about that?

Zorki 1 with industar 61 ld. I love it! I feel so stupid for clinging to SLRs. Only had it for half a day though, any pitfalls i should know? (I read the manual so i know about not changing the shutter speed before priming the shutter, switching from 500 to z etc) Also have anyone tried making a strap for it? The leather case looks ugly, and mine didn't have one anyways.

My Zorki 1b, with the collapsible Industar-22 lens.