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Lensatic Compass. Floating Dial. 5550 MILS. Index Line. (A) The “Black” Ring. (C) The “Red” Ring. (B) The Floating Dial. Compass-to-Cheek Technique. Center Hold Technique.
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Floating Dial 5550 MILS Index Line (A) The “Black” Ring (C) The “Red” Ring (B) The Floating Dial