I picked this 319F up not too long ago and was wondering if anyone has seen this double transfer previously - I have not. Pretty much all over dbl trsf. Would love to find another just like it. The upper stars are interesting.
Nice stamp. I don't see an upward double-transfer or a twisted double-transfer that would match your stamp. (Re: French's Encyclopedia of Plate Varieties). Maybe someone else will chime in with their opinion.