b61-562 ELECTRIC LIGHTED LEVEL. Federal Level Co. No. 1030. Federal Level of Chicago produced a whole series of lighted levels in the beginning of the twentieth century based on Daniel Frank's 1912 patent. This is the deluxe version, 30", cherry, with four separate bulbs, one in each of three portholes (level, plumb, and adjustable inclinometer) and one in the transverse mounted top vial. Complete with all bulbs, vials and magnifying porthole covers, pop-up sights (one stuck}, decent wood with some minor dings. From the collection of Don Rosebrook. Good+ 200-400