----- Original Message -----
From: "Richard Warren" <[log in to unmask]>
> As you've probably found, some manufacturers released vinyl 78's without
> notice or with minimal notice. I've seen Columbia 78's pressed in black
> vinyl with very little if any indication of that fact; and several small
> labels used vinyl, usually either black or red, most or all of the time.
> Many children's records were pressed in vinyl, perhaps in order to use
> colored discs, probably also because of shatter-resistance. Many promos
> radio station use were pressed in vinyl, while their marketed versions
> made of shellac. Most vinyl 78's seem to have been marketed after WW II
> (but there are probably exceptions to that observation).
Also, as I understand it, after the war radio stations could request
vinyl promo discs from at least some labels. Some resembled the commercial
issues, while others used "Promo" or "Sample" labels with warnings
against subsequent sale.
Steven C. Barr