Hickok-i-177-cross-index-of-vt-army-tubes NUMBERS – Manual (PDF)
Hickok i-177 Cross Index Manual: Assists technicians in identifying and cross-referencing VT Army tube numbers. File size: 2.5 MB.
Hickok i-177 Cross Index Manual: Assists technicians in identifying and cross-referencing VT Army tube numbers. File size: 2.5 MB.