1893/1898, lot of four commercially used envelopes: 5c. blue oblit. by red "star" duplex "ESCUINTLA 28 AGO 1893" to Guatemala; 5c. blue uprated by Quetzal 1c. blue, postmarked by two "A" markings and c.d.s. "AGENCIA POSTAL AMBULANTE GUATEMALA Y ESCUINTLA ABR 3 1894" to Guatemala; 6c. on 5c. blue uprated by Quetzal 2c. brown (2) with violet "star" duplex mark "ESCUINTLA 20 ENE 99" to London; 6c. on 5c. blue uprated by 1898 surcharges from "GUATEMALA 6 OCT 1898" to Germany (stated to be the earliest recorded use for this envelope). A nice and interesting group.