Vintage Brass & Glass Mantel Clock with Torsion Pendulum

This is a vintage-style brass and glass mantel clock, dating to approximately 1970 based on the provided context of '1970 E. F. Industries hand painted'. The clock features a brass-toned metal frame with clear glass panels on all sides, allowing a full view of the internal mechanism. The top of the clock has a decorative arched brass handle, suggesting it might be portable or designed to be easily moved. The clock face is oval-shaped, also in a brass tone, with black Roman numerals and black hour and minute hands. A distinguishing feature is the open-heart design on the clock face, revealing a portion of the intricate brass-colored gears of the clockwork beneath. Below the main clock face, there is a visible torsion pendulum assembly, characterized by several spheres (likely brass or brass-plated) suspended and rotating. This type of pendulum is indicative of a '400-day' or 'anniversary' clock. The base of the clock is octagonal and made of the same brass-toned metal, with visible scuffing and minor discoloration consistent with age and use. The overall condition appears good for its age, though there is some patina and potential minor scratches on the metal surfaces and possibly dust accumulation within the glass enclosure, which are common for clocks of this type and age. The craftsmanship appears to be of reasonable quality for a mass-produced decorative item of its era, with polished surfaces and clearly defined details. A small signature or manufacturing detail might be present on the base of the pendulum housing.