VINTAGE Heathkit IG IGW-18 Sine-Square Audio Generator Heath Built for Engineer

VINTAGE Heathkit IG IGW-18 Sine-Square Audio Generator Heath Built for Engineer NR (No Reserve Price, this will sell to the highest bidder)
Excellent Condition and comes with the Assembly Manual.
Model: Heathkit IGW-18 which is the Heath Assembeled version of the IG-18.
The sellers father, an engineer wrote a letter to Heath about the IG-18 he was building, Heath responded with a letter back and a factory built & assembeled IGW-18. The correspondence letters are lost and no longer with the set.
I plugged it in and it does turn on, but with my limited knowledge that is as much testing as it received!
I bet it functions like it is supposed to, sold as-is.
Please see the photos, this is the set you will receive when you win.