T-Mount Lens Adapter T2 to MIR Miranda M44 Thread Mount Camera Vintage Japan

This vintage T-Mount adaptor was made in Japan, and was likely sold to attach a universal T-mount Spiratone Vario-Dupliscope slide copier lens to a 1955 to 1960 era Miranda camera body whose lenses had M44 threads. It could have also been used to attach a Miranda camera to a microscope or telescope T2 mount.
This example has light wear, but is all metal and ruggedly constructed and works fine. The screws can be loosened to allow the mount to match the orientation of lens aperture and focus markings. This piece has use whether you shoot analog or adapt vintage equipment to digital.
T2 Mount threads are 42mm with a 1 mm pitch, which differs from M42 mounts, which have a 0.75mm pitch.