This really neat, gray, GB Victoria, 1873-1880, 6p., Plate 16 issue was used at the British Post Office in Guayaquil, Ecuador, between 1873-1880! It's in very fine/extremely fine condition! A nice, partial, "C41," bar numeral cancel(65-70% complete) was applied!<div><br><div><div><br></div><div><br></div></div></div>