Spanning 1831 to 1837, the King William IV Penny catalog contains 26 year-and-mintmark variants.
Uncrowned portrait of King William IV right, legend around, date below. Note: varieties exist (see below)
Seated figure of Britannia right, trident in left hand and shield bearing the Union flag in right, legend around and national flower emblems in exergue.
Composition and specification data provided by Numista