My non-MLU 6x7 is a Honeywell model I got used in 1976. At the time it had a Honeywell-marked plain pentaprism, and I soon added a Honeywell TTL meter prism. These are so poorly appreciated that the sale price is too low for me to bother selling it. I used this camera a lot, and loved it. May gift it to the art dept at the college
I also have a late Asahi 6x7 MLU model from the time just before the name was changed to 67, so it has all the improvements brought in from the intervening years. This too came slightly used, but in 2003.
For medium format shooting nowadays, I've moved to the Leica S, akin to the P6x7 in form factor, and do use these fine Pentax 67 lenses on it!