TT just got a new bottling manufacturer or changed there bottles,Ican't remamber which. The newer bottle have their new mark on them, but there is still a lot of the old bottles floating around
I don't know what the number stands for, but it's not the lot # of the gear inside.
It doesn't coinside with the lot# on the label.

It may however be the lot # of the bottle itself!

On a bottle of eq, it has lot 075 Jul. 03 on the label
on the bottle

09
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TK

bass