Keywords: Shelton-shorthand-double-consonants.png en Thomas Shelton's English shorthand system double consonants Thomas Shelton's Tachygraphy an edition from 1671 page 3 Scanned from a reproduction in Olof W Melin's Stenografiens historia första delen 1927 p 91 Thomas Shelton ca 1601-1650 ca 1671 PD-old Shelton's shorthand |