Johnny Hart's B.C.: Message in a Bottle

I don't collect original comic strip art, except virtually. Here's an original B.C. Comic strip by Johnny Hart, who seems to have had an unending supply of gags such as these.

Johnny Hart, Original Artwork for B.C., July 3, 1980

http://www.ebay.com/itm/B-C-ORIGINAL-COMIC-STRIP-JOHNNY-HART-1980-/271270910240?_trksid=p2047675.l2557&_trkparms=aid%3D555012%26algo%3DPW.MBE%26ao%3D1%26asc%3D17373%26meid%3D1081610364719133508%26pid%3D100034%26prg%3D8089%26rk%3D2%26rkt%3D8%26sd%3D190717471482%26&nma=true&si=UB68sj2DvLx%252F9kdb54zXrlCgzYs%253D&orig_cvip=true&rt=nc

Note: You can see more original comic strip art on this blog here.