The "Panthenon" was only featured in the 1904 Pequegnat catalogue supplement.
Some have said that it was simply a misprint and should of been "Pantheon", however the oak case is slightly different that that model with the top of the clock having a horizontal molding extending across the top of the clock from one set of pillars to the other (see picture).
The clock dial is signed Berlin as well as the movement. There is no model label affixed. This clock measures 17 1/2 inches in width, 13 1/2 inches high and 6 1/2 inches deep. the 8 day time and strike movement gongs the hours and rings the bell on the half hour.
A seldom seen clock.