Need Help Dating Tobacco

Can't give you the answer, but it was produced by Murray Sons until 2005, and Orlik/STG thereafter.

Knowing when the EU mandated the warning labels might be another clue -- albeit less reliable.
ps. Erinmore Mixture is not generally held in high esteem, so your tastes are not far off from the norm.

i wouldn't think it would be that old. those huge warning labels were started in 2001, i think.

Also the tins say Murray and Sons and if they stopped in 2005 that shoots that to heck.

Click to expand...

Roth got it right.
Orlik is only the licensee of the trademark, by law they must have the Murray's name on it.
That's why 3 Nuns until this very day have " Bell's " written on them even though Stephen Mitchell bought out J&F Bell in 1904 and later merged with Imperial in 1957 and now is also made by Orlik, or I should say made by STG at the old Orlik factory in Assens Denmark.
http://www.st-group.com/index.php/pipe-tobacco/complete-brand-list
Tins made by Murray's will say "made in Northern Ireland" and look different,

http://pipesmagazine.com/erinmore-mixture-100grm-pipe-tobacco/
Still though, 2007 is a good guess, but those numbers might not mean anything, like the numbers on Esoterica tins don't make sense...anyway, it's got a bit of age on it, 5 or 6 years, it's probably good to go if you like the stuff!
Here's something that shows both old & new, age tends to darken tobacco,

the EM is down toward the bottom of the page

Vintage Tobacco