France
Republic bronze Proof Essai 10 Centimes 1897, Maz-2173, PF64 BN Matte NGC. Weight is 10.06 gm. See Maison Palombo Auction 6, Lot 256, (October 2008). A similar coin realized 2000 Euros plus buyer's fee. Ex-Dupuis Family Holdings.
Estimate: 800-1000 USD