Roadshow is California dreamin’ with the discovery of treasures at Crocker Art Museum including a Marvel Silver Age comics collection, a Moglia micromosaic plaque of Beatrice Cenci made around 1870 and 1983-1999 Barack Obama letters. Can you guess which one is appraised at $85,000?

See if you chose wisely tonight at 8pm on WGBH 2.