Cloth Seal, Dye Seal, Dyer's One-Part Seal, AA, 1575~1700, Image by StuE, Found by Stuart Wyatt.
Found on Thames foreshore, 12mm, 3.2g.
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.