New York: Grosset & Dunlap, (1947). Later printing, ca 1950. vi, [2], 216 pp. Frontis. 12mo. Textured brown cloth binding with dark brown lettering. Orange pictorial eps. Color pictorial wraparound dust jacket. Front flap series advert lists through "Secret of the Lost Tunnel" More
New York: Grosset & Dunlap, (1947). Later printing, ca 1960. vi, [2], 216 pp. Frontis. 12mo. Sand cloth with dark brown lettering. Light brown pictorial eps. Color pictorial wraparound dust jacket. More
New York: Grosset & Dunlap, (1928). Later printing, ca 1957. [4], iv, 214, [2 (blank)] pp. Frontis. 7-5/8" x 5-1/4". Beige cloth with dark brown lettering. Orange pictorial eps. Black topstain. Yellow spine dust jacket. More
New York: Grosset & Dunlap, (1932). Later printing, ca 1941 (Carpentieri 1941A-14). iv, 213, [5] pp. Adverts last 4 pages. Frontis by J. Clemens Gretta. 12mo. Tan cloth with dark brown title lettering stamped to front board and spine [Format #6]. Orange pictorial eps. Pictorial dust jacket with black title..... More
New York: Grosset & Dunlap, (1952). Later printing, ca 1955. [10], 212, [2 (blank)] pp. Frontispiece. 12mo. Beige tweed cloth binding with dark brown lettering. Orange pictorial eps. Black topstain. Color pictorial wraparound dust jacket. More
New York: Grosset & Dunlap, (1945). 3rd printing (Carpentieri 1945C-3). vi, 217, [1 (blank)] pp. Frontis by Russell H. Tandy. 12mo. Maroon cloth with black stamped lettering [Format #8]. Maroon 'Gretta' pictorial eps. Black topstain. Pictorial front panel dust jacket with yellow spine. This format produced only for this title..... More
New York: Grosset & Dunlap, (1937). Later printing, ca 1954. iv, 212, [6 (adverts & blanks)] pp. Frontis. 7-5/8" x 5-1/4". Beige cloth with dark brown lettering. Orange pictorial eps. Black topstain. Yellow spine dust jacket. More
New York: Grosset & Dunlap, (1951). Later printing, ca 1960. [10], 214 pp. Frontispiece. 12mo. Brown tweed cloth binding with dark brown lettering. Brown pictorial eps. Dark blue topstain. Pictorial wraparound dust jacket. More
New York: Grosset & Dunlap, (1927). Later printing, ca 1961. [10], 180, [2 (blank)] pp. Illustrated. 12mo. Beige tweed cloth with dark brown lettering. Brown pictorial eps. Black topstain. Wraparound dust jacket. More
New York: Grosset & Dunlap, (1954). Later printing, ca 1957 (Carpentieri 1957A-6). [12], 212 pp. Illustrated. 12mo. Light brown tweed binding with dark brown title lettering stamped to front board and spine. Orange illustrated eps. Black topstain. Pictorial wraparound dust jacket with white title lettering printed to front panel &..... More
New York: Grosset & Dunlap, (1942). Later printing, ca 1946. vi, 218 pp. Frontispiece by Paul Laune. 12mo. Beige cloth binding with dark brown lettering. Orange pictorial eps. Brown topstain. Yellow spine dust jacket. More
New York: Grosset & Dunlap, (1949). Later printing, ca 1957. vii, [3], 214 pp. Frontis on plain paper. 12mo. Beige tweed cloth with dark brown lettering. Dark blue topstain. Orange pictorial eps. Pictorial wraparound dust jacket. NB: Binding error. Title on binding is The Short-Wave Mystery... More
New York: Grosset & Dunlap, (1927). Later printing, ca 1956. iv, 212, [4] pp. Adverts last 4 pages. Frontis. Sm. 8vo. Beige cloth with dark brown lettering. Black topstain. Orange pictorial eps. Pictorial front panel dust jacket with yellow spine. More
New York: Grosset & Dunlap, (1928). Later printing, ca 1957. [4], iv, 212, [4 (blank)] pp. Frontis. 7-9/16" x 5-1/4". Beige cloth with dark brown lettering. Orange pictorial eps. Black topstain. Yellow spine dust jacket. More
New York: Grosset & Dunlap, (1928). Later printing, ca 1956. [4], iv, 214, [2 (blank)] pp. Frontispiece. 12mo. Beige cloth with dark brown lettering. Black topstain. Orange pictorial eps. Pictorial front panel dust jacket with yellow spine. More
New York: Grosset & Dunlap, (1939). Ca 1959. [4], 217 pp. Frontis by Laune. 12mo. Tan cloth binding with dark brown title lettering and graphic stamped to front board and spine. Brown illustrated eps. Black topstain. Pictorial dust jacket with yellow spine. More
New York: Gosset and Dunlap, (1927). Ca 1940. [8], 214, [4] pp. Illustrated by Walter S. Rogers. 12mo. Tan cloth binding with dark blue lettering and picture of an airplane. Black topstain. Color pictorial dust jacket. More
New York: Grosset & Dunlap, (1935). Early printing. NB. The 1st edition lists to #17 in the series on the dj flap. v, [1], 216, [2] pp. Adverts last 2 pages. Frontispiece by J. Clemens Gretta. 12mo. Light brown cloth with dark blue stamped lettering. Silhouette eps. Color pictorial dust..... More
New York: Grosset & Dunlap, (1957). 2nd printing, with 1st printing jacket (Carpentieri 1957A-1 & 1958A-2). [8], 184 pp. Illustrated. 12mo. Brown tweed cloth binding with dark brown lettering & orange pictorial eps (2nd state binding). Pictorial wraparound dust jacket. More
