Exceptional Antique Walker's "Cherub" Mark II Brass Taffrail Ship Log – Thomas Walker & Son, Birmingham, England – c. 1912 – In excellent condition – No reserve. Offered is an original solid brass Walker's "Cherub" Mark II Taffrail Ship Log, manufactured by the renowned British nautical instrument maker Thomas Walker & Son of Birmingham, England. Introduced during the Edwardian period, the Cherub Mark II became one of the most widely used mechanical ship logs aboard merchant vessels, naval craft, yachts and fishing boats throughout the first half of the 20th century. Mounted on the vessel's taffrail (stern rail), the instrument was connected to a long line and a towed bronze rotor (not included). As the ship moved through the water, the rotor rotated the line, driving the precision internal gearing and accurately recording the vessel's speed and total distance travelled in nautical miles. Before electronic navigation, these instruments formed an essential part of traditional dead-reckoning navigation. This example is marked: WALKER'S "CHERUB" SHIP-LOG T.W. (MARK II) with calibration number 900, indicating the instrument's calibration ratio. The ship log retains its original heavy brass body with a beautiful untouched maritime patina, the original hinged brass bezel with locking screw, and an exceptionally well-preserved white porcelain dial with crisp black lettering. An impressive collector's piece, equally suitable for a maritime collection, yacht club, nautical museum or refined coastal interior. Historical Context Thomas Walker & Son of Birmingham became one of Britain's most respected manufacturers of mechanical marine navigation instruments during the late 19th and early 20th centuries. Their patented "Cherub" taffrail logs earned an international reputation for reliability and precision and remained standard equipment aboard thousands of commercial and private vessels until electronic navigation gradually replaced mechanical ship logs after World War II. Condition The instrument is in excellent antique condition. Rear towing spindle rotates freely and smoothly. Internal gearing engages correctly and drives the dial. Original porcelain dial is free from cracks, chips or restoration. Original hinged glass bezel is complete with its locking mechanism. Brass housing displays an attractive natural patina with light age-related wear consistent with over a century of careful use. No significant dents, repairs or structural damage observed. Specifications Manufacturer: Thomas Walker & Son Origin: Birmingham, England Model: Walker's "Cherub" Ship Log (Mark II) Period: approx. 1912 Calibration No.: 900 Material: Solid marine brass, glass and porcelain enamel dial Length: approx. 26 cm Height: approx. 15 cm Dial diameter: approx. 10 cm Weight: approx. 2.0 kg Shipping The instrument will be professionally packed using multiple protective layers and shipped in a reinforced box to ensure safe transport.