Cloth Seal, Dyer's One-Part Seal, IPS, 1575~1700, Image & Found by Stuart Wyatt.
Found on the Thames foreshore near Queenhithe Dock and Southwark Bridge, 14mm.
Privy mark consisting of cross patriarchal with base of a heart divided horizontally I P (joined by horizontal at base of cross that could be interpreted as an HP ligature) / S // blank
Dyers one-part (bulla type) seal, Very similar to those shown in Fig.37 in Geoff Egans 'Lead Cloth Seals and Related Items in the British Museum' which he categorises as a dyer's one part seals found ‘in some numbers ... from Trig Stairs to London Bridge’. He dates them from the late 16th to 17th centuries.