NEED SOME EXPERT HELP HERE RE 1987 F1

[Landcruiser]

Spoted a 1987 Champion Constructors - Drivers medal on Ebay and was wondering if its worth bidding. I was a big fan of Nigel Mansell and thought this maybe a nice thing to own.
I Googled the item but cant find any info anywhere.
The medal can be viewed here and I would be grateful for any advice.

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Thanks in advance for any help/suggestions.