To the many kind folks who responded to my query about barcodes.  Many, many thanks. 
 
Two of you recommended the article by William Albert Manning "Automated Systems in Museums: the Use of Bar Code Technology in Collections Management" in Museum Management and Curatorship, Vol. 18, No.1, 1999:9-18.  I recommend it to anyone interested in barcoding issues.
 
Sincerely,
 
Frances B. Clymer
Librarian
McCracken Research Library
Buffalo Bill Historical Center
Cody, Wyoming
 
 
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