The vintagemachinery.org site has two WorkMate accessory ephemera in its
publication reprint section that may be of interest to you and quite a
collection of general line catalogs as well.

http://vintagemachinery.org/mfgIndex/detail.aspx?id=101&tab=3&sort=2&th
=false&fl=">http://vintagemachinery.org/mfgIndex/detail.aspx?id=101&tab=3&sort=2
&th=false&fl=