Bidspirit auction | Set of 3 levelling instruments

Set of 3 levelling instruments 19th/20th century: Obendorf and Seidel Reichenbach, brass tube on three - Lot 3: Levelling instruments, 19th/20th century: Obendorf and Seidel Reichenbach, brass tube on a triangular metal stand by Ertel, Munich, No. 33200, F. Weiland, Liebenwerda, brass tube with spirit level on a brass stand; F. Miller, Innsbruck, brass-coloured metal, spirit level on a round stand; tube lengths 24 cm, 18.5 cm, 13.5 cm; heights approx. 14 cm, 9.5 cm, 12 cm, signs of wear, functions not tested *3656/5142/002 (internal)