Pollard Corona Drills. Full-range catalogue showing drills manufactured during the 1940s and 1950s.
Shows the Types 21", 25" and 28" AN and AR; 21" and 28" Types A, 20MH, 31A, 2MY, 2NY, 3KX, 3LX, 1AX, 1FX, 2FX, 2AX, 2CX, 2EX, 13FX, 13AX, 13FY, 13AY, 15FX, 15AX, 15FY, 15AY, 3M, 3MX, 9FX, 9DFX, 13FX, 12FX, 12AX, 12DFX, 15HF, 15HA,12MX, 6MX, 16MX, 2TXS , 2TX, Model M, 3MX, 21AN, 25AN, 28AN, 21AR, 25R, 28AR, 20MH, 31A, 20MH, 31A, 2MY, 2NY, 3KX, 3LX, 6MX, 12MX, 16MX  and all the special machines including Single Purpose production models, Horizontal Drills, Horizontal borers, Tapping Attachments,, etc.28 pages.