I believe this should be dropping as well from various named kobolds in Velks Lab. Also from looking at the various entries on Allah I don't believe any of these cold steel pieces were limited to one named kobold. They all seemed to have just as much of a chance to drop from any of them.
Here is an entry for
Tpos Icepaw on allah circa 2001.
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Jelek Icepaw
Comment on jelek saying he drops cold steel boots, not listed on his drops