"PAT. 2517191" was eliminated.
		Insert with "PAT.2517191"
		1967 insert without "PAT.2517191" (There are 2 kinds of insert.)
		Typeface of "Z"was slightly changed.
		Sstraight cam spring and widespread cam spring
		Solid felt cell
		40th Anniversary Zippo
		Reverse side of the inset
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