10 c. blue, 'L'-shaped block of 3 from the lower right sheet corner with 1/6mm sheet margins at base and right, 2 stamps slightly touched resp. cut into at one side and some minor creasing, tied by circle of bars with adjacent c.d.s. "MERSCH 23/IV 1860" to entire letter to Saarbrücken, overpaid by 5 c. And attractive and rare franking. Certificate Böttger BPP (2018)
