dfk41 and the bottom number a 4 digit batch code
it’s a bit of a coincidence, as per @prezes comment, that this 4 digit batch number resemble a day/month (it even has a space “30 07” - which could be interpreted as 30th of July), and that was 2 days ago, and 1 year away from the “best-before” date, if only month and year is considered.
But… We shouldn’t be make making assumptions - I think that’s the key message, whether inferring roast date from a best before date or from a heading which does not read “roasted on”.