[Ref. Royce Rathbone in 260910 MMDigest]

I don't recognize the tune, but most QRS rolls from the mid-teens have
the catalog number rubber-stamped on the underside of the roll leader;
this could be used with a numerical index.

Eric Bernhoft
48 Morris Street
Albany, NY 12208-3519
tel.: 1-646-309-5967