English, c.1865, the spectroscope engraved 'R & J Back 31 Cornhill, London, 18' the accessories all to fit a large Beck Microscope such as the international or a No.1 stand, the accessories include:

An eyepiece goniometer.
A spectroscope eyepiece.
A mineral holder.
Various compressors and live boxes.
A blue glass filter on a stand.

all of these ar in a fitted French polished box 26.8cm x 21cm x 7.5cm