Rare Black Panther Party Communist Poster Expose Cointelpro Afeni Shakur RNA-11 For Sale

VERY RARE original vintage Black Panther Party poster from June 23, 1978. It was an event at Horace Mann Auditorium sponsored by the communist organization. It was a benefit to raise money for the national task force on Cointelpro litigation & research and National RNA-11 defense committee.
One of the speakers at this event was Afeni Shakur (mother of Tupac Shakur).
Measures 17" x 11"
The poster still displays very well but it does have some light water damage/stains. It is also on very rough textured paper and the back side of the paper has residue on it (it's not sticky).
Please see my other items...I will combine shipping for multiple purchases.