In original case (crack to lid) with two telescopes and mirror adjusting key. Chrichton Brothers moved to Billiter Street in 1869 and were last recorded there 1877.The item "Ebony octant in case Chrichton Brothers" is in sale since Saturday, January 9, 2021. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "marl727" and is located in Blackpool. This item can be shipped to North, South, or Latin America, all countries in Europe.