There are two Beira cameras listed in my Mckeown's Price List (2000-2001). Each of them listed shows a different lens than this one. This appears to be the 1930 model and has a Schneider Xenar f/3.5 lens in a Compur shutter, T B 1-500. It seems to have a rangefinder but I'm not sure how it works, it's a sort of cross hairs arrangement. This is one of the more unusual cameras in my collection of over 300 but at 83 it is time for me to pass on the pleasure of collecting.