The Argus Seventy-Five. Not actually a TLR, more like a box camera with a waist-level finder. F/13 fixed aperture, fixed focus, and a choice of bulb or 1/60 shutter speed. Has a tripod thread, which makes it one of the easier to use of the bakelite type box cameras. also has an interesting feature where the shooting lens has a red indicator to show that the shutter is cocked. This particular camera doesn’t allow for multiple exposures (still a ton of fun to shoot though). Takes 620 film, will not allow the use of 120 unless re-rolled.