tin cylindrical float terminating in a cone hat has a ring for attaching additional weight. A rod protrudes from the top, terminating in a circular tray. Possibly an early hydrometer
Small wooden box with 2 brass terminals on top and a brass plate which reads "1 OHM, Univ. Abdn., Nat. Phil." Embossed into the wood is "HARVEY & PEAK, LONDON".
Small silver monocular with 3 prisms which can be angled away from the objective. Engraved on the monocular barrel. The prisms are engraved and on the underside. In leather pouch.
Mount of transit telescope from north pillar of Cromwell Observatory, King's College - shell of telescope also present. See item no.ABDNP:200009a by Thomas Jones .
A "digital Decsope" computer with in-built printer. Everything is in the one plastic cased unit; monitor, processors, keyboard and printer. There is still paper in the printer.