Lot 61615 – 1856ca Cover to Argentina with Estancos 10c (4) and SANTA ROSA pmk

1856ca Cover from Santa Rosa to San Juan (Argentina), franked by “Estancos” 10c., four examples, of which two featuring some uneven margins which are slightly cut into or showing portions of neighbouring adhesives, tied by mute cancels with pre-philatelic “SANTA ROSA” straight-line alongside, being a large cover which has been refolded at left to improve its appearance, with the franking paying an up to 2 ounces rate; covers bearing four examples of the 10c denomination are very scarce; ex Pacheco.