NavList:

As far as I remember Captain Pike’s actual sextant was by B Cooke and Son of Hull, at least that was the name on it.  It might have been bought in.  Also, as far as I remember, it had a three-circle frame.  He bought it from his former Chief Officer from when he first went to sea who he came across selling matches during the Great 1930s Depressions.  While I was at school in the 1950s and learning trigonometry, he loaned it to me to take to school.  I suppose that was because he knew his first command, MV Orelia, https://www.shippingtandy.com/features/editors-mailbox-january-2017/  , which he was ashore monitoring being built, was to arrive with a brand new sextant.  After he died, age 46, my Mum offered it to me, but being at that time mad keen on aeroplanes, like an idiot, I suggested she found a more deserving recipient.  I like to imagine that my own Hughes Mate’s Three Circle sextant is very like it if not an exact copy.  DaveP