sales display
- https://www.dead.net/archives/1971/photos/grateful-dead-lp-sales-display
- https://www.dead.net/archives/1971/photos/grateful-dead-lp-sales-display-0
- https://www.dead.net/archives/1971/photos/grateful-dead-lp-promo-display
- https://www.dead.net/archives/1971/photos/grateful-dead-lp-promo-display-0
- https://www.dead.net/archives/1971/photos/grateful-dead-lp-promo-display-1
- https://www.dead.net/archives/1971/clippings/warner-brothers-letter-promo-display