Aermotor LL-25

Aermotor LS-40

Aermotor LX-25

Aermotor MC-39

CL-100

D-6

International Derrick Model 1933

International Derrick Model 1937

L-4

L-5

L-6

LS-100

LS-40

LX-24

LX-25

MC-39

R-6

Steel Tower