Kundo torsion pendulum desk clock (not authenticated)

This is a tabletop torsion pendulum clock, commonly known as a anniversary clock or 400-day clock, protected by a clear glass dome. The base is an oval brass or brass-plated metal plate resting on small feet. The clock movement is housed in a circular brushed metal dial featuring applied markers and decorative brass posts, supported by ornate cast brass feet. Below the dial, a torsion pendulum with three small decorative brass spheres is visible. The dial bears a script logo that appears to read 'Kundo' at the upper center, and small text near the bottom that may indicate its origin, though it is not fully legible from this angle. The piece shows moderate signs of age, including surface dust, minor tarnishing, and scuff marks on the brass base and dome. A piece of white paper or packing material is stuffed inside behind the movement, suggesting it may have been prepared for transport or storage. The identification rests on the visible dial branding and the characteristic torsion pendulum design associated with Kieninger & Obergfell (Kundo) clocks from the mid-20th century, though the item remains unauthenticated.

Based on what I can see in the photograph, this tabletop torsion pendulum clock bears a script logo resembling 'Kundo' on the dial, which suggests it may be a mid-20th-century 400-day clock by Kieninger & Obergfell. However, I cannot verify from a photo whether the branding is accurate, nor can I test the mechanical movement, spring condition, or timekeeping accuracy. Physical inspection is needed to evaluate internal wear and determine working condition. The visual estimate provided here assumes the attribution is correct. In the general secondary market, vintage 400-day anniversary clocks in similar moderate condition—showing surface dust, tarnishing, and scuffs on the base and glass dome—typically trade within a modest price range. Demand for mechanical torsion clocks has softened in recent years among general collectors, impacting resale values. If this piece were to turn out to be a replica, an unbranded copy, or produced 'in the style of' rather than an actual Kundo product, the value would decrease significantly, likely dropping to the $30-75 range primarily as a decorative object. To establish value and assess authenticity more thoroughly, an in-person examination by a horological expert, detailed inspection of the movement components, and checking for specific maker's stamps or serial numbers would be required.