Unusual Milling Cutter

To me, it looks like an older carbide end mill. Before they made full carbide tools like now, they would braze carbide onto a regular steel base to make a cutting tool. Like brazed carbide lathe tools only an end mill version. Higher cutting speeds. The geometry does look a little harsh for deep cuts, so could be a counter bore tool as well in carbide? Cool old tool.
 
Probably made for machining abrasive materials, cutting mostly on the end, without spiral flutes, taking much of a cut on the side would be like listening to the "Anvil Chorus" from Tannhauser.
 
Except for the Weldon shank, it looks like a router bit. I've seen four flute solid carbide router bits and three flute brazed carbide router bits.

Maybe it's a "millroute" bit :laughing:
 
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