In the early 50's, late 40's I believe these were made in Buffalo. At the time O&R .23's were selling for about $11 in my local hobby shop, the Aero was selling for $35 or just about a full weeks wages in my Upstate, NY town. At the same rate, if thy were built today I think the hobby shop would have to as at least $450. BTW, one of our local guys had one and complained that with all the moving parts it was always over heating and didn't run well at all. With all that being said, I will take it from you for $35, OK?
Joe