Asahi Pentax Clip-On Light Exposure Meter

The listing

Asahi Pentax camera clip-on light meter. Designed for classic mechanical film cameras like the Pentax S1a or SV. (Or H1, H3, H1A, H3V?). I'm not a photographer (this belonged to my brother). It features a compact black housing with a top-mounted striped exposure window, a calculator dial on the side for setting shutter speeds and film speeds (ASA). It is in excellent, like new condition and includes the original all leather, black zippered carrying case. It has been carefully stored in this protective case since purchased. Note: I'm told that the open back bottom is where it clips onto the camera with the foam protecting the prism. $25