There are a few out there, and I think i can say that i have the largest collection of those. I know a few french arcs that I have seen that are not in my collection sadly, but I have almost every book since the last 15 years or so.
And a good friend of mine was pretty good at spotting old-style french arcs, with "SP" punched in the covers. Quite subtle and need to go through every single pictures of every book for sale online lol.
But that friend is selling his collection and I am buying his french arcs :s
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