Chicago: Solidarity Bookshop, n.d. 4p., 8.5x14 inches, very good. Receipt date of January 1970 penciled in upper right corner.
Consists of "a special appeal to all those who consider themselves to be revolutionaries" to support the work of the Anarchist Black Cross, by Christie, and "The Spanish Revolution Revisited" by Blackwell. Ends with specific advice on sending parcels to political prisoners in Franco's prisons.