This 1930s KAL-KLOK Observatory Tape Measure Clock is a vintage masterpiece. With a mechanical movement and power source, this desk clock features an analog display type with a beige color and metal frame material. It also has a calendar and alarm ticks, making it a practical and stylish addition to any early 20th century collection. Manufactured in the United States in 1938, this original KAL-KLOK clock is a rare find for collectors of decorative and vintage items. Its unique design and functionality make it a one-of-a-kind piece that will surely impress any clock enthusiast. Add this to your collection today! Rare Art Deco Kal Klok 4-in-1 Rotary Tape Measure Alarm Clock with Calendar Working. Size 5.3/8″ x 5″ to top of winding mechanism. It may still need servicing. Some wear on original case and doesn’t have top cover. Was able to adjust calendar to correct month and day. Not certain how to change day. Here some additional information I found. Marketed as the Kal Klok, this rotary calendar clock was designed by Herbert W. Lamport and patented in July 1938. It has a cast metal case and ivory painted finish. Winding/setting knobs for alarm and time are concealed under the hinged domed lid. The upper opening in the clock case displays the time on a rotating tape measure-like dial. Windows below display the month, day, and date. The three calendar dials are manually set (not operated by clock movement) using a knob on the back of the clock case. Height, 5 1/2 in. X 5 3/8 in. Key wound 30-hour movement. Although this looks like a Lux Clock Mfg. Rotary clock, it was not made by Lux. The three patent nos. On the Kal-Klok pertain to the movement only, and all are assigned to the Western Clock Co. The Kal Klok wasn’t manufactured by Westclox either, but probably by the Howard Clock Corp. Howard was owned by Joseph C. Morris and Jim I. Silvers, who are listed as assignees on Lamport’s Kal-Klok patent. Will be listing other clocks.