Astron International 22 Loose Prism Set in Wood Case

Description

Astron International 22 Block Prism Set with Red Lens.  Comes in wood case.
Powers:
1/2Δ
1
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2
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4
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5Δ
6Δ
7Δ
8Δ
9Δ
10Δ
12Δ
14Δ
16Δ
18Δ
20Δ
25Δ
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40Δ
45Δ
50Δ