Cupal based and, apart from missing one prong, in a very good, slightly worn condition with most of the gilt plate still present.
Not marked but a known variation that has been classified as Cupal Type 1. See GCA database.
The backing plate has been old replaced.

Cupal based and in a very good, slightly worn condition with practically all of the gilt plate still present.
Complete with all four prongs and blue covering cloth but without(!) backing plate.
Not marked but a known variation that has been classified as type Cupal 2. See GCA database.
Very difficult to find, the type 2 is much more seldom seen as the type 1.