THE SPECTRE BULLET by Thomas Mack and THE AVENGING NOTE by Alfred Sprissler ... [cover title]. New York: Published by Stellar Publishing Corporation, n.d. . Octavo, pp.  2-24, printed self wrappers, stapled. First edition. Published by Hugo Gernsback as "Science Fiction Series" No. 17. Bleiler (1978), p. 130. Reginald 13474. A fine copy. (#165752).
No statement of printing.