need assistance

[conn]

hello

can anyone tell me the time period and worth of this item ?  a friend found it at a garage sale.

signal corps us army manual telephone central office, AN-TTC-5

(xc-1)

 

i have no photo avail.

 

thank you

[SGM (ret.)]

It's referenced in the picture on page 4 of this .pdf:

TTC-39 TRI-TAC Family of Circuit and Message Switches

Would seem to be some sort of analog manual telephone switch device.  I'm afraid that you'll have to read the whole thing on your own, though.  Fairly modern piece of kit from the '70s it looks like.

Will need a deep dive down the ol' research rabbit hole...