Henry IV (1399-1413), Silver Groat of Fourpence, light coinage (1412-13). Primary series class III, London Mint, facing crowned bust in double tressure of nine arcs, annulet to left of crown, pellet to right of crown, trefoil on breast, fleurs on cusps, legend with double saltire stops, inner and outer beaded borders surrounding, initial mark cross pattée, trefoil at end of legend, +hEnRIC'x DEI xx GRA xx REX xx AnGL' xxZ' FranCxx+, rev. long cross pattée, tri-pellets in each inner angle, double concentric legends with beaded inner and outer circles surrounding, inner legend with reverse barred Ns and unbarred A, CIVI TAS LON DON, outer legend initial mark cross pattée, +POSVI x Devmxx A Dxx IVTOR Emxx mEvm, weight 3.74g (Potter III, dies 3/2 and plate VIII no.11 same dies; Stewartby p.323, PIII; N.1359b; S.1728). Attractively toned, a surprisingly well struck example of this usually poorly struck series, with a very crisp reverse, good very fine and extremely rare. Value $12,000 - UP
During the reign of King Henry IV there was a change in the weight standard of the gold and silver coinage toward the end of the reign partly as there was a shortage of bullion, and partly as a way to provide more revenue to the King. The newer lighter coinage ran from 1412 and have been classified into three types of which this coin herewith is the final type with a nine arc tressure around the portrait of the King.

The obverse Latin legend translates as "Henry by the grace of God, King of England and France" and the reverse as "I have made God my helper" in the outer legend and "City of London" on the inner legend.
Ex Motcomb Collection, Morton and Eden, Auction 78, 17th March 2016, lot 37. The most recent purchase in this collection.