Index card; at the top right, there is an embossed "Rubinoff And His Violin." I am assuming the signature is pencil is David Rubinoff.

Found in "The History of Music" by Waldo Selden Pratt. Published by G. Schirmer, 1935.

-Click to enlarge photos-

1 comment:

  1. There is an authenticated autograph of Rubinoff for sale on eBay that looks the same. I think you can take it as his.

    Interesting find!