George III Cartwheel Penny notched and countermarked.

Can anyone shed light on this coin, could the counter marked name be for the artist James Ward (1769-1859) who painted commissions for George III and is the notch symbolising a love token?

Weight 26.7g
Diameter 35.8mm
Thick 3.24mm
Copper

The notch reminds me of gas meter tokens, like these samples:
https://en.numista.com/catalogue/exonumia272905.html
https://en.numista.com/catalogue/exonumia229931.html
https://en.numista.com/catalogue/exonumia44011.html
https://en.numista.com/catalogue/exonumia132271.html

The links below show examples of how in the past, (Dutch) circulation coins were sometimes altered into gas meter tokens:
http://www.nederlandsemunten.nl/Virtuele_munten_verzameling/Anders/verzameling_zinken_dubbeltje_gebruikt_als_gasmuntje.htm
https://www.marktplaats.nl/a/verzamelen/militaria-tweede-wereldoorlog/m1683896093-ww2-lotje-handgemaakte-gasmunten-tweede-wereldoorlog-03.html?c=9b26ed2a557deff636f4f8b9c5b7a618

The Netherlands have had an extensive infrastructure for natural gas, and gas meter tokens are common to find. I couldn't find much on British gas meter tokens, but it could be a clue to your notched coin.

https://nl.m.wikipedia.org/wiki/Gaspenning
I didn't know this one...