W.A.Church Bures Ltd. Seal, Image by StuE, Found by Simon Col Club.
Found in Essex, 21mm, 5.6g.
Curved around the outer edge of one side is the name W.A.CHURCH (BURES) LTD. Similarly placed on the other side is the inscription SEED GROWERS above with .BURES. below.
A full history of W.A. Church and his company from 1878 up to 2002 can be found here