Hi dansblackcat, and welcome back to OutdoorKing. it's great to see the resto started and your new addition. If you can supply us with the complete string of numbers stamped into the air cowling of the Briggs and Stratton we can give you the date of manufacture of the engine which will then give us the approximate age of the edger.
Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member. Kindest Regards, Darryl