Combination travelling barometer and compass by 'Pastorelli & Rapkin' of 46, Hatton Garden London.  The outer case is black Moroccan leather covered with all original catches and hinges in perfect condition, along with the interior of green velvet and silk. The case opens both at the top and at the bottom to view the respective instruments. The metal casing is a very early nickel plated brass, and is showing very light areas of rubbing and spotting on the extremities. The barometer dial is silvered and 100% mint. It reads from 23 to 31"Hg with an outer altimeter scale for 0 to 8000 feet. The compass dial has a jewelled bearing and the 'Singer' patent transit lock, which is the button slide on the side of the casing. The dial itself is made of hand painted Mother of Pearl which would give it a slight iridescence in low light. Again this dial is 100% intact, but some of the black paint from the extreme sides where the lock causes it to be pressed up against the chapter ring has come off. This along with some small particles of debris are held by static under the glass. The barometer itself has been stripped down for cleaning and checking, but access to the compass is limited as the glass is the original, and in essence forms a hermetic seal with the unit as the jewelled bearing is locked against the centre of the glass. It is functioning fine though so we can't see any long term problems with leaving it as it is.