Yes,S,cube,I knew whenever i saw it, that it was at least 100 years old.....When i was 15,i worked as a "Chain Boy"....on a large building project,...a chain boys duties were,to carry the site engineers, Theodolite, and tri-pod, and measuring staff,...then set up the theodolite, ...he then held the measuring staff at various points around the site, whilst the surveyor looked through the theodolie....and recorded the levels,....The level I carried way back then was similar to this one, and my engineer told me then to be very careful with it as he had inherited it from his grandfather,.who lived in Edinburgh....When I turned 16 I started my joiners apprenticeship..... this Theodolite.that i,ve got ..is over 150 years old....its value is a good deal more than i paid for it.....and what i like about it is it was made in Edinburgh.....