NAVIGATION
Potassium chloride crystal optic rectangle, 38.5mm x 19.5mm x 4mm, unpolished
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Potassium chloride crystal optic rectangle, 41mm x 23mm x 6mm, unpolished
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Potassium bromide crystal optic rectangle, 30mm x 15mm x 4mm, unpolished
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Potassium bromide crystal optic rectangle, 41mm x 23mm x 6mm, unpolished
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Cadmium telluride Optical Window, 25.4mm (1.0in) dia x 1mm (0.04in) thick
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Quartz Optical Window, 25.4mm (1.0in) dia x 1mm (0.04in) thick
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