Soon after the seminal album 'East-West' made stars of the Paul Butterfield Blues Band, lead guitarist Mike Bloomfield left to pursue his own musical direction. The result was the Electric Flag.
The postcard was only printed once before the concert. It measures 4 5/8" x 7 1/8".
There were also some pre-concert double-sized mailers printed that were conjoined with the BG082 image. They measure 4 1/2" x 14 3/8".
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