According to my 1980 Edition of Sutherland's, Regina bodies In The Day were stamped FI for English thread, FF for French thread no stamping for Italian. So one might think the box would also have been marked FF for French. Still doesn't explain what FN is, though.
Regards,
Jerry Moos Big Spring, TX
"Koepke, Mark" <mkoepke@uwsp.edu> wrote: Still hoping to discover what FN means on a Regina Oro box? Are these then French threaded, or....?
Thanks, Mark Koepke
Stevens Point
WI 54481 USA
mkoepke@uwsp.edu