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by meghido10 1559 days ago
maybe it's printed on the thin film you remove to open the cap. really dont know
1 comments
tecleandor 1559 days ago
Some of the heinz bottles have a small relief in the top of the cap, kinda like this:

http://flyosity.com/design/ketchup-bottles-the-physicality-o...

That's why it appears in the scan.

link