Search our collection

Clear all filters
Image
Date
AD Waller's model train used in electrocardiograph experiment

AD Waller's model train used in electrocardiograph experiment

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments

Toy train waggon for Waller's early electrocardiograph experiments, 1887-8, Waller collection

Toy train waggon for Waller's early electrocardiograph experiments