Part of the cowling for a B-25 bomber
Palmer, Alfred T
Aircraft part is finished on a huge turret lathe
Palmer, Alfred T
Laying out Parts
Palmer, Alfred T
Switch boxes on a B-25 bomber
Palmer, Alfred T
Locomotive lubrication chart in the laboratory
Delano, Jack
Operating a hand drill
Palmer, Alfred T
Nose wheel and landing gear assembly
Palmer, Alfred T
B-25 bomber Motor Cowling
Palmer, Alfred T
Assembling a horizontal stabilizer
Palmer, Alfred T
Drill-press machine shop
Palmer, Alfred T
Packard; Precision Gauges
Unknown