Admiralty steering compass demonstrating the laminated compass needles typical of the mid-19th century (mariner's compass; magnetic compass)
Admiralty steering compass demonstrating the laminated compass needles typical of the mid-19th century (mariner's compass; magnetic compass)
Model of half midship section of a double bottom merchant ship (model - representation; merchant vessel)
Half-size model of 'deep-sea clamm’ sampler designed by Captain John Ross (mechanicals sounder; sea sampler; model (representation))