I found this vintage mystery film in a bulk film loader I recently purchased. I'll perform a very basic series of clip tests on the film to determine an approximate effective ISO to shoot the film at, and to determine an appropriate development time.
The set of tests I'll use is fairly simple and will provide rough results that are close enough for general use of the film. If you are interested in more accurate film testing and developer matching techniques, I can highly recommend the following resources on YouTube:
John Finch, Pictorial Planet: https://www.youtube.com/@PictorialPlanet
Mat Marrash, Large Format Friday:
https://youtu.be/pN-LM1lM8Kg
If you would like to support my channel in a material way, buying me a roll or two of film is always greatly appreciated: https://buymeacoffee.com/oddballcamu