PERKIN-ELMER PRECISION OPTICAL COMPONENT IN ITS ORIGINAL CASE.
WIDE DIAMETER, FLAT GLASS ELEMENT SECURLY HOUSED IN A HEAVY METAL RING.
MEASURES APPROX 13" (D) X 3"
PERKIN-ELMER PRECISION OPTICAL COMPONENT
PERKIN-ELMER PRECISION OPTICAL COMPONENT IN ITS ORIGINAL CASE. WIDE DIAMETER, FLAT GLASS ELEMENT SECURLY HOUSED IN A HEAVY METAL RING. MEASURES APPROX 13" (D) X 3"
