'CDX Model E' dental x-ray unit, Chicago, USA, 1935-1936

1935-1936

Blackboard and sprinkler from the ward of a Spanish monastic infirmary

1701-1900

Memorial board relic from Franklin's Northwest Passage expedition

1845-1846

Blackboard, wood, with illustration

1896

Dental electroplating apparatus

1955-1970

Fair brass data plates and two gauges

1880-1885