For info:
Age: 1953 Serial Number: 6E-811, Model 6E, "Super-Service" Series EQUIPPED WITH: Tapping Capabilities Heavy Duty Track-Type Base w/Power Traverse & Clamping Power Arm Elevation Power Clamping to Arm, Column, & Base Power Rapid Traverse to Head CATALOGUE SPECIFICATIONS: Arm Length: 8' Column Diameter: 19" Horizontal Head Travel on Arm: 7' 4" Vertical Arm Travel on Column: 3' 7" Vertical Spindle Travel in Head: 20" Spindle-Radius, Minimum: 24.625" Spindle-Radius, Maximum: 9' 1" Spindle-Nose to Base, Maximum: 6' 6" Column-Face to Spindle, Minimum: 11.625" Drills to Center of Circle: 16' Spindle Nose Diameter: 4.2" Spindle Taper: #6 MT (36) Spindle Speeds, Range: (18) Spindle Feeds, Range: .004 to .125 IPR (6) Tapping Leads, Range: 8 to 27 TPI Floor Space Required: 16' Wide x 23' 8" Deep Extreme Height, Column Above Floor: 10' 10" Extreme Height, Head & Arm Extended: 12' 9" Approximate Weight: 30,000 Lbs.