This an exceptionally rare MRTP ML15, an exclusive and overbuilt version of the flagship Oktava ML15 ribbon microphone. The MRTP was the Soviet Ministry of the Radio Engineering Industry who spec'ed out and manufactured microphones for the most important and prestigious uses in the USSR.
The MRTP ML15 differs from the more common Oktava version both in appearance and sound. Visually, the MRTP version has a beautiful crinkle-coat paint job, information badge, and typically has a perforated grill (this one uses a mesh grill from an Oktava). You will also notice that the body of the MRTP is longer, and that's to accommodate the substantially larger output transformer used in this microphone.
This particular MRTP ML15 isn't in the best cosmetic condition. It was missing its original grill, so we used a spare Oktava mesh grill with it. The body has some chips and scratches, and it is missing its original stand mount (which can be problematic since the rubber in them can dry rot). Instead there is a standard-thread adapater making it easier to position and much more reliable, albeit less impressive looking. This rare mic is priced accordingly.
Otherwise the microphone is perfect internally and was serviced and re-ribboned by the late great Clarence Kane at ENAK when he was still actively servicing ribbon microphones. It has seen very little use since then.
