[MRCA] Curious Items Found?

[D. Platt]

In going over a boxt of miscelaneous parts and stuff from a benefactor, 
I have two items which someone may have interest/need for.  One is a 
Navy-marked, larger size spline "T" connector along with a crank knob.  
Looks like one end goes into the equipment, the other two go to the knob 
and to a remote control box? Again, its the larger size than 
ARC-5/274N.  The other is the more curious one. The flat cardboard box 
the item is in is pencilled with the word TBK 13.  Inside is an "L" 
shaped glass thermometer.  The box is obviously cut and inserted to 
protect the thermometer.  The thing apparently is inserted into the host 
unit, with the calibrated, readable area going vertical as it would exit 
the host equipment. The calibrations read from 58 deg C to 62 deg C.  
I've seen this type of arrangement on temperature-controlled oscillator 
and FSK units.  Anyone having any experience with the TBK?

Jeep K3HVG