Originally Posted by
Andrew R Stewart
Could be an Atom tool. Bring it to your LBS and compare it to their Phil tool or a Park FR-4 and see if the splines and diameter match up. Andy.
Don't bother, it's most definitely an Atom. That's an original French made version. If it says 407, then it was sold by Var.
Here's a picture if you're interested.
It fits Maillard freewheels called Atom or Normandy (old version) ], and also freewheels marketed by Schwinn under the Schwinn or Schwinn Approved, in the days when they were still sourcing out of Europe.