Watch List notes:

France 1 Euro Essai Pessac 2nd type undated (minted in 1998) weight 7.48 grammes, 23mm diameter, Reverse inverted, UNC and lustrous, an unrecorded type with 5 sets of 17 striations on the edge milling (the adapted coins had 3 sets of 29 striations) we note an example has been previously been sold on the internet for £850 in 2013, we note average selling prices fore the 3rd type 1 Euro range from 390 to 590 Euros, this second type known to be much rarer

Estimate: 500-750 GBP