For info:
NEW - 1976 SPECIFICATIONS: STOCK # TABLE SIZE..................: 6" X 30" SCREEN SIZE.................: 30" LONGITUDINAL TRAVEL.........: 8" VERTICAL TRAVEL.............: 6" NUMBER OF LENSES............: EQUIPPED WITH: ANGULAR MEASURING CAPACITY 360 DEGREE CHART ROTATION MERCURY ARC PROJECTION 1" MICROMETER POWERED ELEVATION THREE POSITION MANUAL LENS TURRET 20X LENS MACHINE RECONDITIONED & RECALIBRATED