Date: 11/29/1999 Views: 4348
Date: 06/07/2009 Views: 3203
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Date: 05/23/2007 Views: 534407
Straight edges. Ones on left with holes have cork backing, keeps straight shape better. Without cork better for checking curves. Besides Isopropynal removing witness marks on Andair gasculator, it also does a fine job on some rulers!