Identify mystery 1970s rangefinder?

This photo shows a camera owned by a serviceman in Vietnam in the 1970s. Can anyone identify the camera<div></div>

<p>Ricoh 500:</p>

<p><a href="/classic-cameras-forum/00DI1H">http://www.photo.net/classic-cameras-forum/00DI1H</a></p>

<p>Absolutely one of my favorites...it looks like the 2nd version (1958-9) of a Ricoh 500 with the interior film counter, before they changed the design around 1960 to provide for a larger & brighter rangefinder. I actually prefer the 1st version, which has an exterior film counter. This is a shot of my camera of the same model year as shown in your picture above.</p><div></div>

Thank you!

Stephen, your camera is slightly different from the one in the photo I uploaded - the lever below the lens has a different shape. Is this a model difference, or aftermarket repair?

<p>Bob - the "triggermatic lever on the bottom came in 2 flavors, a pointy one which was used on the Type 1 and early Type 2 model production runs, and then a rounded off one on was used on the later production runs of the Type 2 models. Anecdotally, I once heard that the basis for the change was that people didn't like stabbing themselves with the pointy one. I have both, and it doesn't really make a difference, and they are interchangeable if you prefer one style over the other. When folded into the up position both raise equally above the surface - provided the "up" stop on the bar they are attached to hasn't worn down. I had one with a pointy end which the "up" stop had worn ever so slightly and the pointy end would stick into the ribbing on the lens focus lever, sort of "freezing it" momentarily. Fortunately I had a donor body and replaced the bar with the "up" stop on it, a 5 minute task, and it has been a joy to work with ever since.</p>

<p>Also I did this one at http://www.photo.net/classic-cameras-forum/00XiNm </p>

<p>However, look how similar to a Yashica posted today at http://www.photo.net/classic-cameras-forum/00ba5H?unified_p=1 </p>