Lot 30174 – Colombia Cubiertas Insured Letter Stamps collection

Extensive duplicated collection Cubiertas, insured letter stamps applied to the reverse of envelopes, housed in six albums and a folder with 1867-70 black on grey group used, 1870-80s black on white, 1886 violet and bistre on white ribbed paper unused, 1860s multi-coloured issues unused or used, late 1880s red 50c and group of blue 10c to 1p, 1890s single colour ranges to 1p, some States, some literature; fair to fine (Hundreds)