Date: 12/31/1969 Views: 5436
Date: 12/31/1969 Views: 2719
Date: 02/01/2014 Views: 8940
Date: 08/23/2023 Views: 118524
Date: 05/23/2007 Views: 542218
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!