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What might these markings mean?

What might these markings mean?

I bought this Tyre at the Silverstone Festival this weekend as a souvenir. I'm wondering if any of these markings mean anything interesting? Mainly the 'DN9 5 FR'. Everything I've found on Google about this don't sound right. I assume the rest are just serial numbers etc.

The mechanic I bought it from said it was probably off of a Mclaren F1. He wasn't 100% sure though.

submitted by /u/DSClark8
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