Dating columbia 78 rpm records
Disques 78 tours Database of the Finnish Institute of Recorded Sound SONIC (Sound ONline Inventory and Catalog): a portion of the Library of Congress Audio Collection: database (with searches by commercial 78s, 45s, and cassettes or by music only, etc.) The Swedish National Archive of Recorded Sound and Moving Images The virtual gramophone: Canadian historical sound recordings: search _________________________________________ Bauer, Roberto.
Seventy years of issues : historical 78rpm pressings from original masters, 1931-2001.
HSR ML156.4 M977 R2 1998 _________________________________________ Online sources Acoustic opera sets Coverage is from the earliest acoustic sets (ca. Discography of historical records on cylinders and 78s. HSR ML156.2 R971 D6 The world’s encyclopedia of recorded music.
The new catalogue of historical records 1898-1908/09. London : Sidgwick and Jackson,  HSR ML156 B344 1947 Rust, Brian.
The links below will show you the labels I have in my collection in alphabetical order. However, if you are looking for something in particular please ask as I do have quite a few duplicates and others that do not suit my musical tastes.
I have started to write information about each label but have a long way to go.
American Record angelfire.com/or/settlet/American APGA (Association Phonique des Grands Artistes); Excel zip file from Truesound online discographies; scroll down to find list of labels Records Discography Project includes session indexes Artiphon; Excel zip file from Truesound online discographies; scroll down to find list of labels Robert Gilchrist.