[Milsurplus] How many SST-1 Transmitters left?

[Ray]

I have on display in my shack a fully functional and operational WW2 OSS 
issued, SST-1 transmitter given to me years ago, by Vance Vogel, W4OVE 
(SK).  He told me he used it as part of an SSRT-1 package, to transmit 
German troop movements from behind the lines, during the Normandy 
invasion.  He was able to bring it home with him after the war.

It is in original and excellent condition.  I have taken good care of it 
and have used it on 40 meters.

I recently was asked do I know of how many of these still survive?  I do 
not.  Does anyone have a feel for how many more might be out there?

Your attention is appreciated.
Ray, W4BYG