It was quite a week at the Philadelphia Spectrum when the NBA & NHL playoffs coincided with the end of the Grateful Dead's 1985 spring tour.

But Grateful Dead imagery - the Skulls & Roses, the Dancing Bears, the "Invisible Pimp ... there's something for every fan's wishlist - besides tickets to a show at Sphere, of course.

But Grateful Dead imagery — the Skulls & Roses, the Dancing Bears ... there’s something for every fan’s wishlist — besides tickets to a show at Sphere, of course. The web-based bike ...