I found the Marconi-Victor records on archive.org but not all in one group. They are probably all there and there may be a better link for them. The code sounds like a buzzer. The transfer give the date as 1917. <https://archive.org/search.php?query=victor%20%20marconi> On 4/19/2021 9:10 PM, Richard Knoppow wrote: -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL