PORTUGUESE INDIA: brass 10 centavos, 1961, KM-Pr27var, Gomes-E7.04var, extremely rare variant, with PROVA incuse to left of "10" and "L" right, instead of "N" to right of "10" (both KM & Gomes list only the N version), NGC graded MS64, RRR.
Estimate: 300-400 USD