Hi Eric, this is likely Peebles Script (Monu-Cad proprietary font) or Athletic Script (Commercial TTF). Difficult to find Athletic Script, as it appears it is no longer for sale or downloadable.
There is also a second, less elegant but similar variation of the font called Sport Script. Copied from an unknown original, it spawned many variations for the sign and monument industries, it has inconsistent numbers and punctuation. Cadlink SignLab’s Sport Script, and Craftech Software’s Athletic Script are proprietary Monument Industry versions. There were/are also some commercial TTF versions available named Aktuelle, Opti Sport Script, Spoleto, MVB Mascot, and AZ Cut.