These are everywhere for 25 cents I got this out of a small box of foreign coins for a few dollars How does this happen??? http://www.ebay.com/itm/French-Coins-Vth-Republic-1-Franc-Semeuse-1960-/190836398209
Well just look at the bottom of the auction where they show similar items!! Still in the Hundreds. I still don't get it!
Way down in the eBay listing, the Seller cites a French coin catalog, as stated above, the 9 with a long tail. As for the "why" of the price, you need look no further than U.S. Large Cents, with immense premiums for some minor (to a Frenchman ) date/die varieties.
That price still seems to be a little high; cgb.fr for example lists a few "avec le gros 0" (and I believe that is the same kind of variety), and that dealer wants €350 for a SUP62 piece. But you can also get it at €20 for TB30. Christian