This Olympus Pen EE-2 camera was owned by Robert Gale a veteran of CCS and was used on a trail watch mission in 1969 on the Cambodian border. Robert (Bob) entered The US army in 1967 and completed Special Forces training in 1968, being send to Vietnam in 1969 and then allocated to CCS.
The Pen EE was introduced in 1961 and was the amateur model, with fully automatic exposure and fixed focusing. It is a true point and shoot camera, and has a 28mm f/3.5 lens. The Pen EE family is easily recognized by the selenium meter window around the lens.
The Pen EE.S, launched in 1962, is the same model with a 30mm f/2.8 and a focusing ring, made necessary by the wider aperture.
Olympus Pen EED
Picture by ja1vbn.
In 1966 the two cameras were slightly modified and became the Pen EE (EL) and Pen EE.S (EL) with a modification of the take-up spool to make film loading easier. EL stands for Easy Loading. You can only recognize them by a small label marked EL stuck on the front, or you can open them and look at the take-up spool.
The Pen EE.2, produced from 1968 to 1977, is nearly the same as the Pen EE with the addition of a hot shoe and an automatic exposure counter. The Pen EE.3, produced from 1973 to 1983, seems to be exactly the same camera.
The Pen EE.S2, produced from 1968 to 1971, is the same as the Pen EE.S with the addition of a hot shoe.