For The Love Of Port

I have in my possession one bottle of
Blandy's 1899 Madeira limited edition. 189 bottles were produced, I have bottle #68. Can you tell me if this wine has any unusual value? Thank you.

Bob,
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When was it bottled, and what do you consider unusual?

$500 would be unusual. I can't tell when it was bottled. The label is partially hidden by a leak from the bottle created by a broken seal. i guess that would ruin any value that it might have had.