This achromatic telescope has a leather-covered barrel and four brass draw tubes. The other fittings include a pivoted eyepiece cover, a sliding sunshade and leather caps for each end of the telescope. Loops on the barrel and on the straps presumably once had a strap running through them.

Two names are inscribed on the smallest draw tube: 'CALLAGHAN / 23A NEW BOND ST / CORNER OF CONDUIT ST / LONDON', the maker, and 'RICHARD DARBY / COALBROOKDALE', who was probably an owner of the telescope. Several parts also have the numerals ‘IV’ roughly inscribed on them, probably as part of the manufacturing and assembly process.