3 d. G. R. I. On 40 penny imperial yacht, variety \"comma in lieu of dot to I from GRI\", used, only well known copy this overprint variety, expertized Hoffmann Giesecke, Georg Buehler and expertise Scheller: \"Genuine. Very fine. This one with the variety comma after I is unique. Unofficial printing with private cancellation. \" (GIBBS 7 A)