WordNet
billiard marker
n. a device for keeping the score in a game of billiards
Usage examples of "billiard marker".
The hunt is led by a Bellman -- that's you, Arthur -- full of zeal and umph, and his crew includes a Boots and a Banker, and a Billiard Marker and a Beaver who makes lace -- probably you, Simon, because 'he often saved them from wreck / Though none of the sailors knew how'.
Someone wrote and told me that she had eloped with a billiard marker—.