tin cylindrical float weighted by lead suspended in a tin cone. A rod protrudes from the top, terminating in a circular tray containing a red residue. Possibly an early hydrometer
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
Two 8" "BASF FlexyDisk"s, (floppy disks). Very thin computer disks with visible magnetic sector in centre. Both disks hold 128 bytes. Also with instructions hand-written on paper, possibly for a programme on one of the disks.