Kowa Kallo 181/281
image by David Broglin (Image rights)
The Kallo 181 and Kallo 281 are rangefinder cameras that use 35mm film and were produced from about 1959 to 1960 by Kowa. They are equipped with an uncoupled lightmeter and a Copal SVL shutter. The 181 has a 1.8/45 Prominar and the 281 a 2.8/45 Prominar lens.