French, c.1890, engraved 'Aspirateur Dieulafoy, Collin et Cie' with a retail engraving for 'Salt & Son Birmingham' the aspirator constructed of nicle plated brass with ceramic nozzle, ratcheted plunger with engraved scale running length of body, on a wooden base, base 26cm - The Dieulafoy aspirator was invented by Georges Dieulafoy (1839 - 1911) in 1869, a French physician and pathologist

Footnote: for a similar instrument see Science museum Inv. No. A662814