I have never seen one for sale yet.
Its the Bolens Winter King Snow Caster.
You can find it in the 1962 Bolens Brochure in the manuals section
Antique 1961 Bolens Snow Blower - eBay (item 120675559242 end time Jan-30-11 13:11:52 PST)
Edited by Bolens 1000, January 24, 2011 - 08:29 PM.