Ciro Cameras was around for about 10 years. In that time they made only two cameras. The Ciro-flex and The Ciro 35. There were various models of each camera. Six for the 'flex and three for the 35.

The Ciro-flex is pretty common. They must have made a lot of them.

Film advance and focus on the same side. Not a good idea.

Wollensak made lenses and shutters for about seventy years. They left that business in the early 70's. Many of their photographic products are still in use today.

Arista EDU Ultra 400 @ ASA 200 in HC110(h) for 6.5 minutes