I have a FIRSTFLEX, as well. There is almost nothing about it on the internet. The only place I found any information is on TLR-camera.com. Mine is even more low budget than yours. It has B thru 100th sec, First shutter, F 3.5 thru f22. Both lens are First Anastigmat, F3.5, 80mm. The word Firstflex looks the same as yours ,but the shutter button and flash are both located on the lens. I've shot several rolls through it, and it takes decently sharp negatives.