Date mark website or book?

[amblypygi]

Hi,

I found an ER Durkee dressing bottle with this mark on the base. I know this type of mark is a date mark, and I used to have a book or website that deciphered what they meant, but I can't relocate that for the life of me. Can anyone point me at that again?

Thanks!

Sean

 

[GuntherHess]

try this...
http://www.users.bigpond.com/oz-riley/bottledating.html#britishregodiamond

 

[amblypygi]

Bingo! Thanks Matt!

My bottle was made on 31 August 1882, and is now the most accurately dated bottle I own []

Sean