Center section isolates and magnifies one line at a time.
Magnified portion ruled one side in 1/16", the other in 1/10".
Scales correlate with horizontal and vertical printout columns.
Perfect for proofing data or copy. Center section isolates and magnifies one line at a time. Magnified portion ruled one side in 1/16", the other in 1/10". Scales correlate with horizontal and vertical printout columns. Plastic.
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