You are bidding on an Original David Singer designed Psychedelic Bill Graham Fillmore Postcard...The shows took place during Jan 1970 at the Fillmore West in San Francisco and featured the Byrds, Fleetwood Mac and John Hammond.
The Design comes from BG 210 in the Bill Graham Poster series. 
This is BG 210-OPC-A in Eric King's Poster Guide. It is the Pre concert 1st printing with the Calendar back
The postcard measures approx. 5 X 7 and is in Beautiful Near Mint Condition.

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