1873 (Jul. 14) St. Thomas to Genoa, Italy, blue folded letter with "St-Thomas JY 14 '72" backstamp, carried by RMSS Elbe to England, red London (7.29) backstamp, forwarded in closed bags via France to Italy, Genoa (8.1) arrival backstamp and "17" decimi backstamp with Italy 1L, 30c. and 40c. postage dues cancelled by Genoa cds; horizontal fold with slight toning, F.-V.F. Estimate  $300 - 400. Under terms of the current Anglo-Italian Convention, the portion due G.B. was a combination of 1sh. (12 decimi) per ¼ ounce British transatlantic packet service and transit fee to France, plus the 1 France per 30 gram (25c. per 7½ gram) closed mail transit fee through France to Italy, for a total of 14½ decimi. Added to this was 20 centesimi per 7½ gram Italian internal postage, for total rounded up to 17 decimi. $0 (Image)