Filed on September 15, 1975 at the United States patent office the Zippo
 magnifier was introduced to the product line on January 23, 1976 and
finally patented on July 26, 1977 with the patent number 4.037,940
The magnifier # 6100 uses the same case as the rule introduced in 1960
and holds two plexiglass lenses of 1" square size for magnification.
These lenses were not produced by Zippo Mfg. but ordered at the nearby
Erie Plastics in Erie, PA.  Similar to the Zippo bottom stamps these lenses
had the Zippo logo molded into them.
The two-piece cardboard boxes were produced by F.N. Burt in Buffalo, NY.
In 1976 these cardboard boxes were colored silver and black but due to
design changes the colores were gold and black since 1977 then.
The boxes contained special guarantee cards explaining the magnifier.

1976 molded bottom stamp

1976 brushed chrome

1976 signature engraved & color filled brushed chrome

1976 signature engraved & color filled brushed chrome

1976 / 1977 canadian molded bottom stamp

rare 1977 canadian release brushed chrome

molded bottom stamp design since 1977

late 1970's brushed chrome

late 1970's brushed chrome

1979 high polished chrome

late 1970's to early 1980's brushed chrome

1983 high polished chrome

original magnifier sales sheet from the 1976 promotional products catalog