Chess clocks - Original wooden Ruhla chess clocks. The tradition of the Ruhla timepiece production dates back to 1890, the year in which the first timepieces were built by Brothers Thiele - Uhren und Maschienfabrik - Ruhla The Gardé chess clocks were first used at the Chess Olympiad in Leipzig in 1960 and are since then also the official match clock at the world championships, including Karpov - Kasparov until the PCA world championship match between Kasparov and Short in London in 1993. Thereafter, the digital clock made its appearance on the World Championship stage. 1 - Chess clock RUHLA - GARDÉ - Made in GDR (DDR) - beech wood - approx. 1980 Size: 22 x 12. 5 x 5.5 cm. Weight: 795 grams In very good condition, the movement still works perfectly. 2 - Chess clock UMF Ruhla GARDÉ - (Made in Germany) - teak wood/ beech wood - approx. 1990 Size: 22 x 12.5 x 5.5 cm. Weight: 715 grams. Condition: in good condition, movement runs perfectly, some pieces of wood missing on the corner at the back. This lot will be shipped quickly, well packed and by registered post.