Up for sale is a highly unusual and rare antique international world time zone desk clock manufactured by G.B. Gardner. The center of the dial features a 1925 copyright stamp alongside a "Patents Pending" notation. This historical timepiece features a specialized brass dial displaying major global cities and regions—including London, Berlin, Leningrad, Azores, Canary Islands, Rio de Janeiro, and US time zones (Eastern, Central, Mountain, Pacific, Alaska)—designed to calculate international times simultaneously against the outer 12-hour track. 

The movement itself is housed inside a heavy, solid cast metal industrial style desktop pillar base with its original dark copper-bronze painted finish. The back of the casing features an integrated metal winding key and time adjustment hardware.

Condition: Antique used condition with heavy signs of age and wear. The external cast metal base displays considerable paint loss, surface scuffing, flaking, and bare metal exposure throughout. The clock mechanism runs and ticks beautifully when wound, but the inner world time calculation dial function remains untested or may require mechanical servicing / adjustment to rotate synchronously as originally intended. Please view all high-resolution photos closely to assess the precise physical condition and patina of this rare Art Deco era collectible.