I do have what appears to be an original copy of Ketelbey's "Tangled
Tunes".  I agree, a great roll!  It is a 'Tempoline' roll # S7914 issued
by John Broadwood and Sons, Conduit St, London.

The label is green and stuck to the leader which is dark grey with lots
of patent information (Britain, USA, Germany and France), possibly
Aeolian.  The roll has Themodist holes and a Metrostyle line in red
starting at tempo 70; there is a green centre-of-keyboard line and a
green dotted expression line that moves the full width of the roll.
The large spool has wooden ends in a plain black box.

Ian McDonald
Australia