1865-1868, Netherlands, lot of 4 folded letters, all tied by Type 1D "FRANCO" in frame cancel.

• 1865: Kampen to Amsterdam, franked with 10c Brownish Red, single-circle postmarks in red.
• 1867: Almelo to Lage, franked with 5c Deep Blue, cover postmarked ‘Almelo’ in red and ‘Laage’ in blue, indicating partial postage paid by sender.
• 1867: Rotterdam to Amsterdam, franked with 10c Dark Red, double-circle postmarks in red.
• 1868: Amsterdam to London, franked with 15c Dark Orange, postmarked ‘Amsterdam’ and ‘London / PAID’ in red.