According to Wikipedia,
"Repoussé or repoussage refer to a metalworking technique in which a malleable metal is shaped by hammering from the reverse side to create a design in low relief. Chasing, chased work, or embossing refer to a similar technique, in which the piece is hammered on the front side, sinking the metal."
This late 19th or early 20th century pendant features a scholar or hero riding on a horse with an entourage surrounding him. We can see all sorts of decorative shapes that line the perimeter, such as scrolls, kites, and other playful objects.
A bit under 6" across by less than 4.5"