1665FKL12

F = 14 1/2
K =Quick Change Gear (QCG)
Friction Feed Apron (FFA)
Underneath Motor Drive (UMD)
L = Large Spindle Hole, Standard Swing
12 is the revision number

CL8185C = catalog number
The first 8 indicates it was a tool room lathe
1 is the motor set up
85 is the type
C = 6 foot bed, 36 inches between centers
weight boxed: 2785 lbs