Poverty Bar, Cal., May 4 (Calaveras), balloon cds on cover to New Kingston, New York franked with 5¢ red brown type I (28), two singles, top stamp with pre-use tear, tied by additional strikes of the cds, endorsed "via Panama"; cover tear at left, bottom backflap missing, F.-V.F., a very rare use of the red brown 5¢ in California, ex-Myerson. Estimate  $500 - 750. Illustrated in Coburn's Letters of Gold on page 316. $0 (Image)