Cloth Seal, Dyer's One-Part Seal, AA, Image & Found by Tony Thira.
Found on Thames foreshore just upstream London Bridge, north side, 11mm.
Privy mark, cross, A A to sides // 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.
