Dear Matt, greetings from France !
The frieze depict the combat between Herakles (name above) and the River God Achelous (name under, writen in greek capitals reading: Axelôos) lying on the ground while Herakles steps on him. The Hero carries the body of Deianira in his arms.
All is explained in the wiki: https://en.wikipedia.org/wiki/Heracles https://en.wikipedia.org/wiki/Deianira
nice frieze, would like to see more of the same sculptor (Grayser Hofe ?).
cheers.
Franck.
MATTHEW'S ISLAND 
Dear Matt, greetings from France !
The frieze depict the combat between Herakles (name above) and the River God Achelous (name under, writen in greek capitals reading: Axelôos) lying on the ground while Herakles steps on him. The Hero carries the body of Deianira in his arms.
All is explained in the wiki:
https://en.wikipedia.org/wiki/Heracles
https://en.wikipedia.org/wiki/Deianira
nice frieze, would like to see more of the same sculptor (Grayser Hofe ?).
cheers.
Franck.
Thanks for the information, Franck! I have no idea who sculpted it.