In the UK, most 78s were supplied from the manufacturers in paper or card sleeves, either plain, or with the record company's own design on them; frequently with details of similar recordings on the reverse. Many retailers (small as well as large) had their own sleeves printed, with the address of the shop on the front. Most printed sleeves were quite decorative; and it may be possible to find some with Carter-Family-related stuff -- we shall hear soon, I'm sure!

Steve (avid 78-collector)