Physical description
Tribrach, brass, an adjustment and levelling section of instruments such as a "Dumpy Level' or "Theodolite". There is a number 32 stamped on the base. One of the adjustment screws is missing.
Tribrach, brass, an adjustment and levelling section of instruments such as a "Dumpy Level' or "Theodolite". There is a number 32 stamped on the base. One of the adjustment screws is missing.