A set of eleven plaster models mounted on wooden bases, each representing a stage in the development of the frog embryo. These examples are not…
A set of eleven plaster models mounted on wooden bases, each representing a stage in the development of the frog embryo. These examples are not…
A set of eleven plaster models mounted on wooden bases, each representing a stage in the development of the frog embryo. In contrast with similar…
A set of eleven plaster models mounted on narrow metal pillars set on square wooden bases. Each model represents a stage in the development of…
A grey plastic tray with a brown-tinted clear cover features moulded recesses that contain 19 individual metal instruments. The tray consists of two parts, an…
A grey plastic tray with a brown-tinted clear cover features moulded recesses that contain 19 individual metal components as well as two blue rubber screw-like…
A small domed enclosure on a black base contains a fine glass mechanism. Within the enclosure, on the top surface of the base, is a…
This object consists of a small grey control unit, an earpiece and attached wire, and a small instructional booklet contained in a small brown case…
A wedge-shapes instrument with wooden sides, pale green trim, and a black console with several knobs and dials. Clipped to a bracket on the top…
A black box with a rectangular footprint has two latches on the front surface to secure the lid. The interior of the case is lined…