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27.54% linked
Updated Jul 25, 2025
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an auction to a puzzle.
The UTC Puzzle (Exchange Puzzle IPP 31)
Jun 17
2022
$15.00
1 bids
The UTC Puzzle
Jan 01
2020
$23.56
1 bids
The UTC puzzle , IPP31 exchange puzzle
Aug 03
2019
$14.40
3 bids
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