Jasper Engineering Stereo Photo Slide Bar Filter Type_Close-Up This is a light-duty promotional

This is a light-duty promotional bag

and rotating coupler so you can stack the holders together

Shutter fires at one speed

including minor pinholes in the bellows

with original packaging

Jasper Engineering Stereo Photo Slide Bar Filter Type_Close-Up This is a light-duty promotionalThis Jasper Engineering slide bar is designed for stereo photography with matched cameras. It's 16" (about 40cm) long, with two sliding platforms, each with a 1 4" threaded camera mount. In good working order, with a small scrape at the corner of one rail end that does not affect function. Two camera platforms and one stopper block are included (both sides have an end stop.)