Good Luck ! TLG included one silver brick in each of the 25th Anniv bulk buckets / tubs. Set numbers were in the range 3025-3030 with 3029 & 3030 being duplo sized. So you would have to locate quite a number of tubs/buckets or find someone selling (...) (25 years ago, 13-Nov-99, to lugnet.castle)
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