Attached are photos of the cocking piece and sear. The sear does not have any apparent filing marks. The last picture shows a dark line at the base of the cocking piece/sear engagement face. That appears to be where the original face of the cocking piece was before alteration. Approximately 1/32 of an inch was removed. I believe this was a modification during installation of an aftermarket trigger. The last part of the directions for a Timney trigger is to file the cocking piece if the safety no longer functions.
thank you for your help.