[78-L] 17 1/2" transcription blanks

[David Lennick]

These were required for cutting a 16-inch master from which pressings were to 
be made, leaving room to handle the disc when processing. Oversized discs were 
also used for 12" and 10". I have a 14" disc that contains a 10-inch 78RPM 
master, dating from about 1947.

dl

On 7/29/2012 11:27 AM, Dennis Flannigan wrote:
> Just noticed, my blank transcription discs are 17&  1/2 inches across. Is
> this a particular brand, and where they used differently than the 16" discs?
>
> Thank you,
>
> df
> ________________________