Distant ancestor of the Makina W67, this is a mid-century Plaubel Makina IIS.
The difference between this and the earlier Plaubel Makina II is that the IIS, introduced in 1936, has a behind-the-lens Compur shutter, whereas the previous version's lens elements were behind the shutter.
The IIS was further improved in 1949 with the Makina III and in 1953 with the Makina IIIR. The IIR introduced a Compur-Rapid shutter, with higher speeds of 1/500, at which point the company Plaubel offered the option of fitting the new shutter to older models.
Next up was the Makina 67, then the W67, then the 670, all released after Plaubel was taken over by a Japanese company called Doi. ⠀
These strut-folding rangefinder cameras are a fine sight to behold and are indeed a piece of photographic history.
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Plaubel Makina IIs in the lab
Color printer extraordinaire David takes a brief break to model a Plaubel Makina II (circa the early 1930s). The Plaubel Makinas were an early and long-lasting series of folding strut cameras. They came in a variety of formats but most commonly they make 6x9cm images.