Bryan, MMD -

The names "Hardman," "Hardman Duo," "Duo-Art" and about 40 other names,
all appear on pianos made by the Aeolian Corporation from the '50's
through about 1985s.  Many names, such as Hardman, Peck, were gleaned
from piano companies that faltered during the great depression.  Most
of the pianos were the same basic instrument with different names stuck
on.  Although they used the name "Duo" or "Duo-Art," the players were
only 88-note and not reproducers.  I am not aware that the "Hardman
Duo" was measurably different from any other of their players, so there
should be no problem with getting and applying such a decal if you so
desire.  Others can correct me on this, but I have serviced a number of
them and can see no difference.

Bill Maxim  -  pianomax@aol.com¶
Serving South Carolina from Greer and Columbia