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Copy of a Rowland Grating
Diaphragm with 2 cross gratings
Diaphragm with 3 Circular Hole and Disc Paires
Diaphragm with 3 Double Slits of Different Widths
Diaphragm with 3 ruled gratings
Diaphragm with 3 Single Slits and 1 Double Slit
Diaphragm with 4 Double Slits of Different Spacings
Diaphragm with 4 Multiple Slits and Gratings
Diaphragm with a Single Slit and Rib
Set of 3 Colour Filters, Primary Colours
Set of 3 Colour Filters, Secondary Colours
Set of 4 Gratings
Set of 4 Image Objects
Set of 5 Hole Diaphragms
Set of 5 Single Slits
Set of 5 Slit and Hole Diaphragms
Set of 7 Colour Filters
Transmission Grating 300 Lines/mm
Transmission Grating 600 Lines/mm
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