26 PRINT MAKING MACHINES, DRAWING INSTRUMENTS, ARCHITECTS' AND ENGINEERS' SCALES, MAP MEASURES, PLANIMETERS, SLIDE RULES, PANTOGRAPHS, PROTRACTORS, TRIANGLES, TEMPLATES, PARALLEL RULES, DRAFTING MACHINES, T-SQUARES, IRREGULAR CURVES, DRAFTING ROOM FURNITURE, STEEL MEASURING TAPES, LEVELLING RODS, RANGE POLES, PLUMB BOBS, TALLYING MACHINES, SURVEYING INSTRUMENTS, SURVEYING ALTIMETERS, MAGNIFYING GLASSES AND MICROSCOPES