-  Dated  1953  ,  embossed  WD  &  broadarrow.    Brass cap is marked   AAO  &  Co. Ltd.     It seems  AAO  was  Anglo-American Oil Co.   a subsidiary of Standard Oil Co.  Predecessors of  ESSO,  apparently the company name was changed  1951 to ESSO Petrol Co. Ltd.   So - seems like they were lazy in change of cap casting. Has had a smear on a base soldered seam (probably Devcon)  , container is all solder seam construction -  flimsy ?   If you are interested - I am open to of