(c) punched in base c.: SD (monogram) (lion passant) (leopard's head) r / 121 printed on front cover of accompanying book c.: Stuart Devlin (evlin underlined) inscribed in pen and ink on page 1 of accompanying book c.: 121 printed in gold (vertically) on paper label on outside of lid of original box c.: Stuart Devlin (Devlin underlined) / LONDON ENGLAND.