My brother bought the LP in '68 when it first came out.  I remember him  and his buddies all stoked as they figured out the record company had edited the picture.  They had painted out the guys middle finger on the washboard.  
Thanks for the memory RP.  Hadn't thought of that in, oh, maybe 54 years.

I had this in the car CD player last week. Incredible album—tho' this is one of its odder cuts, uncharacteristically hippie-dippie. Contrast with, for instance, "Hey, Grandma!", "Omaha", and "805." Great album.

Edit re Bill's post-track commentary. This wasn't a San Francisco band per se. Skip Spence was the only indigenous musician, having been Jefferson Airplane's original drummer. The rest were highly talented ringers from Seattle and Southern California brought in by entrepreneur/hustler Matthew Katz for the expressed purpose of making a killer, money-making album, which they did.

Two ancillary points. First, no, not all the "San Francisco" bands of that era (ca. 1966-70) were indigenous. The Steve Miller Band and Sir Douglas Quintet were from Texas; The Youngbloods from New York; and the Butterfield Blues Band from Chicago. Second, regardless of their manufactured pedigree and subsequent crash-and-burn, Moby Grape produced one hellacious album. Only the truly xenophobic—yes, even hippies acted very strangely at times (an understatement, no?)—objected to the Grape's origins. The music was simply too good.