Lot 40297 – 1878, 1,000r grey slate, a choice group of four stamps

1878, 1,000r grey slate, a choice group of four stamps with outstanding colored usages including red cds of Desterro (signed R.A.M.), segmented cork cancel also in red, indistinct violet cds (tear in margin only and marginal imprint), and oval registration handstamp of Paraná (signed R.A.M.); cancellations in blue or red on this stamp are very rare and create a visually impressive effect; ex Dr. de Amaral Machado.