Queen Victoria and Queen Elizabeth II

Headtype IIc (Two curved lines in the hair below the Diadem next to the front curl; dark background; curved base of the bust; irregular necklace pearls, one is missing).
Very bright under the UV .. Read more »lamp, whiter than PCP, lights up.
Cut left.
Value type: III (slim 0, thicker digits and P).
Position of 20: 0.85 mm from the left edge; 2.90 mm from the bottom edge.
(Michel GB Special: 1250.24.1)

Country:	United Kingdom
Type:	Postage stamps
Series:	150th Anniversary of the Penny Black
Nominal:	20 p
Year:	1990
Material:	advanced phosphor coated (ACPB) with strong brightener
Perforation:	comb 13¾ x 14¼