Just found the page on the Yellow Jersey site that has a photo of traditional slotted cleats for Look three-bolt shoe mounts (see 4th large photo).
The address is:
http://www.yellowjersey.org/
They apparently offer more than one "Look Bolt Pattern" cleat that would work on quill/toe-clip pedals.
Hope this is helpful!
Regards, Kevin Kruger - Grantville, PA
Note: forwarded message attached.
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