HENRY VI. First Reign, 1422-1461. AR Half Groat (3.86 gm). Rosette-Mascle issue, 1427-1430. Calais mint. 

Crowned facing bust in polylobe; mm: cross 
patonce.
Long cross pattée; mm: plain cross. 
SCBC 1862.

From the CNG online Coin Shop, 734089, before May, 2004. By permission of CNG, www.cngcoins.com.