The Penny denomination - Variants: Short-cross penny - Long-cross penny
The Penny was originally an anglo-saxon coin denomination introduced by King Offa of Mercia ~785 AD. With a weight of 1.3-1.5g, they were similar in size and weight to the continental 'denier' and anglo-saxon 'sceat'.

Throughout the period of the Kingdom of England, from its beginnings in the 9th century, the penny was produced in silver. Pennies of the same nominal value, one 240th of a pound sterling, were in circulation continuously until the creation of the Kingdom of Great Britain in 1707.

Various designs were struck during the centuries; In 1180 a new style of coin, the short-cross penny was introduced. It was replaced in 1247 by the long-cross penny.
Penny|Short-cross penny|Long-cross penny

(1) Edward I 1299-1301 AD
Obverse:
Reverse:
Ref: Spink 1408
(2) Henry III 1216-1272 AD
Obverse: HENRICVS REX III / Crowned facing bust, sceptre in right hand
Reverse: ROB ERT ONC ANT /
Ref: 5c2
(3) Henry III 1247-1279 AD
Obverse:
Reverse:
Ref: 5c
(4) Henry VI 1422-1427
Obverse: HENRICVS REX ANGLIE, Crowned bust of Henry facing, annulets in fields
Reverse: VILLA CALIS, Long cross, three pellets in each quadrant, an anulet also in the 1st and 4th quadrants
Ref: S 1845