Robin,

In 1955, plastic liners replaced cork liners (Lief 1965:40).

Lief, Alfred
1965  "A Close-Up of Closures:  History and Progress."  Glass
Containers Manufacturers Institute.

Sean Dunham

Sean B. Dunham, RPA
Archaeologist/Principal Investigator
Commonwealth Cultural Resources Group, Inc.
2530 Spring Arbor Road
Jackson, Michigan 49203-3602

Phone:  517-788-3550
FAX:  517-788-6594
E-mail:  [log in to unmask]
WWW:  www.ccrginc.com

>>> [log in to unmask] 03/29/02 01:41PM >>>
Histarch,

I remember reading somrwhere obscure that there is a specific date
associated with the switch from cork crown cap liners to those made of
rubber. Somewhere in the vicinity of 1920-1930, I recall.

Can anybody confirm or refute this?

Thanks,

Robin Mills
BLM-NFO
Fairbanks, AK