Need info on SICO Genometer

[k4kgw]

Recently acquired this jewel at a hamfest.  Need any info on it,
especially schematic and/or manual, preferably both.  Instrument is
missing all tubes, some wires are cut, etc.  Here's what I know about
it:

SICO (Superior Instruments Company, N.Y., USA)
Model--TV-50
Function switch has positions for unmodulated RF/External RF, 400 Hz
sine wave, Variable Audio/Horizontal Bar, and Vertical Bars.

As a signal generator, it covers 100 kHz to 180 mHz in six bands.

Anyone know ANYTHING about it???

Keith