Date: 12/31/1969 Views: 5021
Date: 12/31/1969 Views: 3686
Date: 08/10/2009 Views: 4242
Date: 08/23/2023 Views: 693416
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!