Lot 42083 – P.S.N.C. 1852 (June 14), entire letter from Valparaiso to Cobija (Bolivia), bearing fine strike of the “5” barred oval

P.S.N.C. 1852 (June 14), entire letter from Valparaiso to Cobija (Bolivia), bearing fine strike of the “5” barred oval struck on Pacific maritime mail, this number being presumably used in Valparaiso or Callao (other sources also suggest that it was probably applied on board the P.S.N.C. steamships), one of only four or five covers recorded (these with dates between March and June 1872, this example being the latest known), a very desirable rarity.