What do all the symbols on my coffee lid mean? I bought a coffee from Caffè Nero in the UK. It came with this lid:



What do all the letters mean? I'm assuming DECAF could be marked to distinguish a decaf in a large order, but why is it there twice? What about the other letters? What about 19 near the air hole? Why does it say NO LID??
I am pretty sure it says NO TL316 LID.  That's the item/stock number for that particular size lid (based on a Google search, also available in black!). There are basically two sets of initials for the same thing Decaf, (C)ream, (S)ugar, (C-S) Cream and Sugar, and then one set has the B for Black.  Presumably these could be grease penciled or highlighted on a large order.

I honestly have no idea on the 19.  It may be some sort of internal tracking mechanism for manufacturing, because other examples from a Google image search have different numbers there.