Agilux Agifold

Another British-made camera, from the early 1950s. It has a rangefinder (uncoupled), and, I understand, an "extinction meter" - which I still have to investigate. I am familiar with the concept, however (decades of trying to persuade students NOT to use the term "extinction coefficient", but instead say "absorptivity"). It takes 12 on 120, but looks as if there may have been an adapter to allow 16-on instead (two windows in the back).