A quick google leads me to the Park FR-4
Looks like it, yes, I found the same thing. As you say, cheap enough to not bother the LBS with - so just yet
another tool add to the toolbox. €15 posted (I'm in France, but thanks anyway
@Punkawallah )
The web search also showed that an original Reginal Extra will fetch €50 on the retro market! Think I'll clean mine up and flog it. It's not looking too worn...

Me, I don't care about original/authentic, I just want to ride it!