Oh..the name of the photo refers to "Pignose" a type of amplifier. Apparently this photo was given the name by guitar/amp gearheads. You can see the amplifier in the photo and someone was pointing it out.
Jimmy is in his home studio. It's from a series of photos,actually.The photos are stills from video. There are brief clips of this video within the "Travelin' Riverside Blues" video shown on MTV in 1990.