1967 G/G-671221 Cream Paul Butterfield MC5 Grande Ballroom Signed Grimshaw Postcard Excellent 71
Updated September 1, 2026
This auction ended on September 8, 2026.
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| Lot number | 0056 |
| Estimate | $150 - $300 |
| Opening bid | $10 |
| Auction | Labor Day Concert Poster Auction |
| Date | September 8, 2026 at 8:00 PM EDT |
| Auction house | Psychedelic Art Exchange |
| Location | Baltimore, Maryland |
This postcard is signed by the artist, Gary Grimshaw!   This Original Postcard is part of a group of recently unearthed original Grande Ballroom material acquired decades ago by a collector
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