Original 1st printing 13&7/8 x 22" concert poster for Chuck Berry appearing with Jethro Tull and the Loading Zone from 8/12-14/1969 and Chicago (Transit Authority) appearing with the Youngbloods and Colosseum from 8/15-17/1969, all shows held at the Fillmore West in San Francisco, CA.
Art by David Singer, image is # 187 in the Fillmore series.
Medium glossy-coated index stock poster is in absolutely STUNNING mint/near mint to near mint (A/A- to A-) condition; with the exception of a stray fingerprint/tiny surface scratch or two, this example sits right at the top of the conditional heap.
As an added bonus, this example has been HAND-SIGNED (in gold ink) by Jethro Tull lead singer Ian Anderson himself!