Thorp's Replica Roland Diffraction Grating 1910

Catalogue number #1439227150

Thorp's Diffraction Grating 1	Thorp's Diffraction Grating 2	Thorp's Diffraction Grating 3

Description:

Diffraction grating of 14,500 lines replica of Rowlands metal diffraction grating circa 1910 in original leather velvet lined case. An identical Thorp's grating was used by Sydney Observatory and is illustrated on their web site. Box 2.275" (60 mm) x 2" (50 mm) x 0.75" (20 mm)

Sale Details:

Price: £ 475.00

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