Stanley Mouse sunset jester

Hey deadheads! wuddup?

I'm a huge fan of the grateful dead and the artwork done for them by Stanley Mouse. I'm interested in getting his Sunset Jester image tattood on my back but I don't know where this image officially appeared for the first time. If anyone has any information on the image to share that would be greatly appreciated.

Oh, and for the record, the image looks like this:



If anyone knows anything about it please help me out. Thanks! peace.

 

so i guess nobody knows the origin of this particular stanley mouse poster?