Almost all of the Weston prints I've seen (and that's a
lot) are on neutral or cold paper. He printed on many kinds
of paper encluding enlarging paper. some of his old prints
look brown because they were not fixed completely and have
sulfided over the years. His Platinium prints also vary in
tone.
  Years ago there were many warm tone papers, they were
popular for portrait work. There are still some warm tone
papers but they probably don't look exactly like the old
ones. Developer makes a difference in the image color.
Perhaps the best way to get a brownish tone is to tone the
print in Kodak Brown Toner. KBT works well for partial
toning because it does not split tone. This also results in
good image protection from partial toning. While the
instructions are to use it a 100F, it can be used at lower
temperatures with consequent longer tonint time. This can be
an advantage if one wants only a slight color shift. To stop
the toning from continuing in the wash bath the print should
be treated in a bath of 10% Sodium Sulfite or in stock
strength Kodak Hypo Clearing Agent, for a short time before
washing. This will also eliminate any possible staining.
Developers also affect the color the image turns when
toning. There is on rule for this, one must experiment. In
general, lower activity developers or the addition of
Potassium bromide to any developer, tends to shift the image
color toward yellow.

Were there any really warm toned Amidol developers used around EW's
time ?

==
    John S. Douglas
    Photographer & Webmaster
    www.legacy-photo,com
    www.xs750.net

Yes, I meant Sheeler.