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- Publisher is exactly "Maryland State Highway Administration"
Description: The Jack's Reef pentagonal is a broad, thin, stemless point. It has a five-sided shape, with straight or slightly concave sides, usually asymmetrical. The base is often straight, but can be curved inward. Length typically ranges from 25 to 44 mm. The…
Description: The Jack’s Reef corner-notched point is medium-sized, broad and thin. The blade is flat with excurvate (smooth and convex) or angular edges. It generally has a five-sided or egg-shaped form. The base is flared and straight. The stem is…