Richard is the first king whose shield has any sign of armorial bearing.
The first seal shows a lion, the second seal shows three lions passant gardant.
First Seal - 1189 to 1197? - 3.9"
First Seal from John Speed's 'Historie of Great Britaine'
First Seal from Sandford's Genealogical History, 1707
Second Seal - 1197 to 1199 - 3.7"
Second Seal from Sandford's Genealogical History, 1707