There is also the 1930s Czech Kamarad TLR, sold in the USA as the Companion.
The Companion is a Japanese TLR for 2¼ inch-square exposures on 120 film, probably made in the 1950s. It appears similar in most or all respects to the Krimsoflex: it has coated 8 cm f/3.5 Tri-Lausar lenses made by Tomioka, the viewing lens marked 'Viewer' and the taking one 'Anastigmat', and a Synchro-Super shutter, giving speeds 1 - 1/300 second, plus 'B'. The shutter is synchronised, with a PC socket on the front of the camera, and a cold shoe (impressed 'LKK') on the left side.
The camera has no red window: frame spacing is automatic. Both the focusing and film advance knobs are on the right side of the camera.
The camera accepts bayonet lens accessories.
It is possible that both the Companion and Krimsoflex are rebadged versions of another camera. Both are quite similar to the Toyocaflex, except for the shutter name and the presence of a filter bayonet; also, at least one model of the Lustreflex also has a Synchro-Super shutter and Tri-Lausar lenses (and 'LKK' impressed in the accessory shoe might refer to Lustre).