billybopp Report post Posted May 16, 2016 For all the tool experts here: I often look around at round knives on eBay and elsewhere on the big bad internet, and often see round knives by CS Osborne, and occasionally other makers marked with an X, XX, or XXX. Does anybody have a clue what, if anything, those marks mean?? Bill Quote Share this post Link to post Share on other sites
bruce johnson Report post Posted May 17, 2016 Some people think it was a quality grade - umm, no. In the old catalogs it was a size mark for the #70 round knives. I work from a 1897 copy mostly. The "small" was 5", the "usual" was 6", "X" was 6-1/2", "XX" was 6-3/4", The "XXX" was 7". They also list extra large knives to order.They do list a 2nd quality knife but only in 6". Quote Share this post Link to post Share on other sites
billybopp Report post Posted May 17, 2016 Thanks! I knew that somebody here could shed some light on the matter. Quote Share this post Link to post Share on other sites
