Believed to be a Gentec PH-78-Ge Photodetector head, but here are no markings on the part to confirm.
Comes with LC/PC Style 1.035″-40 Threaded Adapter
Filter and detector close up pictures are from another similar piece, this piece has no sign of damage to any of the optics/electronics.
***MPN PH78-Ge
***OEM Gentec
***SKU*** 61098





