Watch List notes:

France 20 Euro Cent Essai Pessac 3rd type undated (minted in 1998) weight 5.72 grammes, 22mm diameter, Reverse upright, edge with 7 grooves UNC and lustrous, we note French web pages show that average selling prices for the 3rd series 20 Cents range from 290 to 540 Euros

Estimate: 200-300 GBP