The one I had was a Raptar 1a. I don't believe they changed anything but the coating. But mine was not in a Betax but a #4 Compound as best I recall.
But have you used the camera for landscapes at infinity focus? I am pretty sure that the lens I had would have covered fine for portraits, but it just missed for landscape work.
nope, never took the camera outside of the shooting space.
its one of those huge century cameras on a semi centennial stand ...
i have thought of it though ... but a little voice inside my head
told me it probably wasn't the best thing to do