Trefoil on circle (with interior decoration) on trefoil

trefoil on circle (with interior decoration) on trefoil
Watermark: 46mm x 18mm (max.)

 

105mm from upper edge, 108mm from lower edge

between chain-lines 3 and 4

Process: backlighting and Photoshop
Source: Tiomna Nuadh ar dTighearna (Dublin 1602) f. 208
Repository: Royal Irish Academy, Dublin