SN: 9644NKX13, Catalog # CL6155C, 16 x 6, Motor CE2543D, Flame Hardened Bed, Shipped 12/29/1958, Sold to Ideal 107-2 TS T102H, Sad S104H, CR 103H, Ap A103H, GB DTG105H, Says 3 step cone but it's 4 step,