I'm not familiar with the specific mark shown, but one possibility is the
Pacific Coast Glass Works, which existed at the time, and operated from San
Francisco.  In 1919, their logo was a "P" and "C" in complementary
quadrangles.  Reference: Arthur G. Peterson, "400 Trademarks on Glass,"JO-D
Books, Stamford, Ct, 1968, p. 49.  Hope this is helpful.

Allen Vegotsky
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-----Original Message-----
From: Robin O. Mills <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Tuesday, November 27, 2001 3:24 PM
Subject: Bottle Maker's Mark ID


>HISTARCH,
>
>I'm trying to identify a bottle's maker mark, and have tried the usual
>references without luck. The mark is...
>
>P.  C.  Co.    1918
>
>The bottle's attributes include: cylindrical; continuous threaded lip with
>seam to top of lip; height 23.5 cm; diam. 6.86 cm; and is clear very light
>green in color.
>
>Any help would be appreciated.
>
>Thanks,
>
>Robin Mills
>Archaeologist
>BLM-NFO
>Fairbanks, AK
>