Some years back I found about ten rolls of this type in a junk shop
in the UK.  The rolls themselves were all made by the Up-to-date
Music Roll Company of London, but some were in Pneuma boxes --
the residue of a typical jumble where nothing was in the right box.
I figured at the time from the scale and size that they must have come
from a Harper Electric Piano.

Harper were a real rarity, an English brand of piano orchestrions.
They used the Kuhl & Klatt roll scale (and presumably had K&K innards,
or may well even have been K&K instruments with a 'local' name on,
like the "Keith Prowse" instruments that were really Hupfeld Animatic
S instruments).

Harper pianos presumably were originally supplied with K&K rolls, and
rolls made by Up-to-date in all types of scale until the late 1930s,
but that's another story.

Julian Dyer