Incredible Kidda Band was created in 1977.

Incredible Kidda Band ended in 1989.

Incredible Bongo Band was created in 1972.

Aqua String Band was created in 1920.

If you're referring to the cover of the album that Bob was trying to save as the ship was sinking, it was the cover for the Incredible String Band's The 5000 Spirits or the Layers of the Onion.

Here's a bit more about it - hope this helps.

http://rockpopgallery.com/items/autographed-prints/the-incredible-string-band-the-5000-spirits-limited-edition-autographed-print-lep-spspisb5k1-detail.htm

Mike G