Oktava ML19 Cardioid ribbon microphone
The ML19 ribbon microphone from Oktava is still somewhat underrated and I think this is one of the best sounding end-address cardioid ribbon mics.
Based loosely on the RCA BK5, they ML19 has a wider ribbon and is a little warmer in tone with a good bass response, without being overly dark or woolly. Great for upright bass and horns and any source where you need rear end rejection.
These are fully serviced with new ribbon, new cable to XLR and replacement internal foam. (This is necessary with these mics as the old stuff disintegrates and sticks to the ribbon.)