Well, I am back (at last)
... I'll try not to leave it so long next time. My wife has been poorly for some years, and I have felt very rough these past few months.
Anyway, here's a rarity transferred for my old website (Historic Recordings.co.uk) by Mark Obert-Thorn. Louis Zimmermann plays Beethoven's Violin Concerto (first electrical recording, but see Mr. Obert-Thorn's notes for more background. I've also uploaded Zimmermann & two colleagues in the "Ghost" Trio (NOT Mr. Obert-Thorn's work, but kindly shared by a Dutch colleague.
Hope this is of some interest.