Watch List notes:

German States - Prussia Ten Marks Gold 1888A Friedrich III KM#514 NEF/EF with a few light hairlines, in an ornate 14 carat gold mount hallmarked 585, total weight 7.36 grammes, the coin appears easily removable, a scarce one year type, Friedrich III only reigned from March till June 1888

Estimate: 300-400 GBP