Antique Seth Thomas 8 Day Time & Strike Mantle Adamantine Clock w/Pendulum & Key For Sale

This is a classic American Seth Thomas mantel clock, recognizable by its prominent \"ST\" monogram stamped into the cast iron back door. Distinctive black casing with marbled faux stone accents (a material called Adamantine), this clock dates to the late 19th or early 20th century (typically around the 1880s to 1890s). Adamantine was a high-gloss, durable celluloid veneer patented by Seth Thomas in 1880 to mimic expensive black marble, onyx, and wood grains. Neoclassical elements including incised geometric gold detailing, ornate metal feet, and decorative side ornaments. The back panel features a circular iron door emblazoned with the interlaced \"ST\" initials, serving as both a maker\'s mark and a dust cover for the clockwork mechanisms. It includes a dual-ended winding key used to power both the time-keeping mainspring and the chime mainspring via the two winding holes on the front dial.
* I believe it works but I am not entirely sure*