Diamond Etiquette for Courtship and Marriage. Petter, G.E. 102 Cheapside. [J.] Johnstone & Hunter, Paternoster Row. London and Edinburgh. Circa 1850.viii, 108 pages + 9 pages unnumbered publisher's adverts at end. Preface initialed: G. W. Slight smudge on title page. All edges gilt. Original yellow endpapers. 12 x 50 mm. Original publisher's decorated blue cloth with gilt designs and titling to spine and upper cover. Very slightly rubbed. Bondy, 138. Welsh, 2326. OCLC, 49940987. WorldCat locates two copies worldwide (Indiana, and Virginia Universities). This 'pocket etiquette' format allowed it to