Heritage Auctions: Illustration Art Signature® Auction, 8263, Dallas

Frank Earle Schoonover (American, 1877-1972) Where is the Key, Sola?, A Princess of Mars book interior, 1917 Oil on canvas 34 x 25 inches (86.4 x 63.5 cm) Signed and dated lower left: F. E. Schoonover / '17 From the Collection of Robert "Bob" Barrett

James Allen St. John (American, 1872-1957) Yellow Men of Mars, Amazing Stories pulp magazine cover, August 1941 Oil on board 19-1/4 x 14-1/2 inches (48.9 x 36.8 cm) Not signed From the Collection of Robert "Bob" Barrett

James Allen St. John (American, 1872-1957) At the Earth's Core book frontispiece, 1922 Gouache and charcoal on board 28-1/2 x 19 inches (72.4 x 48.3 cm) Signed lower left: J. Allen St. John From the Collection of Robert "Bob" Barrett

Michael Whelan (American, b. 1950) Barsoom: The Gods of Mars paperback cover, 1979 Acrylic on panel 25 x 34 inches (63.5 x 86.4 cm) Initialed lower left: MW From the Collection of Robert "Bob" Barrett

Michael Whelan (American, b. 1950) Synthetic Men of Mars paperback cover study, 1981 Acrylic on board 9-3/4 x 12 inches (24.8 x 30.5 cm) Initialed lower left: M From the Collection of Robert "Bob" Barrett

Richard M. Powers (American, 1921-1996) Tarzan at the Earth's Core paperback cover, 1964 Gouache on board 9-3/8 x 8-5/8 inches (23.7 x 21.9 cm) Signed lower right: Powers From the Collection of Robert "Bob" Barrett

C.E. Monroe (American , 1918-1999) Tarzan the Terrible book cover, 1949 Tempera on board 18 x 17 inches (45.7 x 43.2 cm) Signed lower center: Monroe From the Collection of Robert "Bob" Barrett

C.E. Monroe (American , 1918-1999) Tarzan and the Ant Men book cover, 1950 Oil on board 17 x 15-1/4 inches (43.2 x 38.7 cm) Initialed lower center: CM From the Collection of Robert "Bob" Barrett

Richard Hescox (American, b. 1949) Lost on Venus paperback cover, 1991 Acrylic on board 30 x 20 inches (76.2 x 50.8 cm) Signed and dated lower right: Hescox '90 From the Collection of Robert "Bob" Barrett

Hannes Bok (American, 1914-1964) La Queen of Opar, Tarzan, 1962 Oil on Masonite 21-7/8 x 17-1/2 inches (55.6 x 44.5 cm) Not signed From the Collection of Robert "Bob" Barrett

George Barr (American, 1937-2025) Barsoom: Edgar Rice Burroughs and the Martian Vision book cover, 2001 Watercolor on paper 14 x 9 inches (35.6 x 22.9 cm) (image) Signed and dated lower right: © G. Barr- 2001 The Estate of George Barr

James Allen St. John (American, 1872-1957) Son of Tarzan book interior, 1917 Ink on paper 14-1/4 x 11-3/8 inches (36.2 x 28.8 cm) (sheet) Signed center left: St. John

Laurence Herndon (American, 1880-1961) The Land of Hidden Men, Blue Book pulp magazine cover, May 1931 Oil on canvas 28 x 27 inches (71.1 x 68.6 cm) Signed lower left: Laurence / Herndon

Robert A. Graef (American, 1878-1951) Maza of the Moon, Argosy pulp magazine cover, December 21, 1929 Watercolor and gouache on board 18 x 17-3/4 inches (45.7 x 45.1 cm) Signed lower center: Robt A Graef

Hugh Joseph Ward (American, 1909-1945) Don Diavolo, The Scarlet Wizard, Red Star Mystery #1 pulp magazine cover, June 1940 Oil on canvas 26 x 25 inches (66.0 x 63.5 cm) Signed lower right: H.J. Ward

Norman Saunders (American, 1907-1989) Bury 'Em Alive, Black Book Detective pulp magazine cover, April 1937 Oil on canvas 35 x 24 inches (88.9 x 61.0 cm) Signed lower right: Saunders

Frank R. Paul (American, 1884-1963) The Eternal Cycle, Wonder Stories pulp magazine cover, March 1935 Oil on canvas 23 x 17 inches (58.4 x 43.2 cm) Signed lower left: Paul

Howard V. Brown (American, 1878-1945) Galactic Patrol, Astounding Stories pulp magazine cover, October 1937 Oil on canvas 25-1/4 x 18-1/4 inches (64.1 x 46.4 cm) Not signed

Ed Valigursky (American, 1926-2009) A God Named Smith, Amazing Stories digest magazine cover, July 1957 Gouache on board 13-1/4 x 10-1/4 inches (33.7 x 26.0 cm) Not signed

D. Bruce Berry (American, 1924-1998) Giant Killer, Imaginative Tales digest magazine cover, May 1958 Gouache on board 16-1/8 x 11-7/8 inches (41.0 x 30.2 cm) (image) Signed faintly upper right: D. Bruce Berry

Edmund "Emsh" Emshwiller (American, 1925-1990) Hunt the Hog of Joe, Infinity Science Fiction digest magazine cover, February 1957 Acrylic on board 15-1/4 x 10-3/4 inches (38.7 x 27.3 cm) (sight) Signed lower left: Emsh

Edmund "Emsh" Emshwiller (American, 1925-1990) Aces Loaded, Venture Science Fiction digest magazine cover, July 1957 Gouache on board 18-1/2 x 12-1/2 inches (47.0 x 31.8 cm) Signed lower right: Emsh-

Edmund "Emsh" Emshwiller (American, 1925-1990) Giants From Eternity book cover, 1959 Gouache on board 15-7/8 x 13-1/2 inches (40.3 x 34.3 cm) Signed lower right: EMSH

Alex Schomburg (American, 1905-1998) Rockets to Nowhere book cover, 1954 Watercolor and gouache on board 24 x 20 inches (61.0 x 50.8 cm) Signed lower left: Alex / Schomburg

Harry Clarke (Irish, 1891-1931) Landor's Cottage, Tales of Mystery and Imagination book frontispiece, 1919 Ink on board 10-1/8 x 7-1/2 inches (25.7 x 19.1 cm) (image) Signed, dated, and titled on the reverse: Landor's Cottage / Harry Clarke 1918