on piece CALDERA: 1865-67 4d. plate 13, strip of three with one complete and one part strike of "C37" obliterator in blue, also 1873-80 3d. plate 19 strip of four on piece, similarly cancelled but with two complete and one part strike and also the corresponding "CALDERA" c.d.s.; Coquimbo 1872-73 6d. buff plate 12 pair with fine single strike of "C40"; very attractive and good to fine