[R-390] CV-116/URR RTTY Converter/Demodulator Question

[triodes at optonline.net]

There are two complete CV-116/URR RTTY Converters available here locally. As most on this board are aware, this was a very common converter for use by the military and U.S. Government to demodulate RTTY signals when used in conjunction with the R-390 or R-390A receivers. Both units look like they are in good, well-maintained condition, with the usual decades-old accumulation of dirt, etc.

I have no idea as to what these two units are worth. Any ideas or thoughts???? Is there even any market or demand for these old units nowadays?

Thanks & 73,

Bruce, W2XR