[Milsurplus] What is this unid. handcrank gen?

[Hue Miller]

In RADIO & TELEVISION NEWS for
Feb. 1949, pg 135, ad for Telemarine
Communications Co. of 9th Ave.,
NYC, there's a "Hand-Generator NEW
complete w/ seat pedestals and cranks
plug & cable and carrying bag. Output
162 volts at 60 mA, and 3.1 volts at 
0.3 A completely filtered and voltage
regulated. Export packed four complete
units to a case. CASE (four complete
units) $30.00.  

End quote. Drawing looks just like GN-35,
GN-48, etc. BUT WHAT equipment is this
for? I am stumped! Some survival transceiver?
3 v at 0.3 A is not a very powerful radio! 
That's something like 3 3S4's ! 
-Hue Miller