Speedball textbook for pen and brush lettering / [electronic resource] / [edited by Charles Stoner and Henry Frankenfield]. — 20th ed.. — Philadelphia, Pa. : : Hunt Manufacturing Co.,, c1972.. — 96 p. : : ill. (some col.) ; 22 cm. Cover title. Subjects--Topical Terms: Lettering.Alphabets. LC Class. No.: NK3620 / .S64 1972 Dewey Class. No.: 745.61