Magnetic Domains Apparatus

Nine hypodermic needles in original carton

Early form of compact light source by Philip Harris Ltd.

Hand cup anemometer by Phillip Harris Ltd. of Birmingham

Gold-leaf electroscope by Philip Harris Ltd.

Newton's rings apparatus by Philip Harris Ltd.

Centre-zero moving-coil galvanometer

Semi-circular concave mirror in stainless steel

Barlow's wheel, by Philip Harris Ltd., Birmingham

Rotary switch for measuring magnetic flux density by the make-and-break method

Rotating disc apparatus for measuring magnetic flux density

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