"System Cane For Mesuring Horses With Level, Gadget Cane, Horse Dealer Cane"
Gadget cane. It is made of bamboo, on the handle, a small metal valve allows you to deploy a measuring rod that unfolds to measure horses or other animals. This height chart also contains a small level. It allows to measure up to 70,86 inches. The rod measures 38,97 inches. France, First part of the 20th century. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato