There's some great photos from the 1969 concerts at MSG on Michael Friedman's website.

"Lost in storage, the negatives for these incredible photos of legendary musicians were discovered in Michael Friedman’s attic this past year.

Friedman was an avid photographer when he worked in the music business in the 60’s and 70’s as a manager and producer. He had the opportunity to befriend, work with, and photograph, legendary musical artists including Janis Joplin, The Band, Kris Kristofferson, Rita Coolidge, Paul Butterfield Blues Band, James Cotton, Todd Rundgren & the Rolling Stones."

A selection of the images will be on display in the exhibit Rock & Roll Legends, the Lost Negatives of Michael Friedman at the California Heritage Museum from April 14 through August 12.

These sure are some terrific images from different angles esp. the second image