2 1/2 $ Imperial Yacht - so-called peacetime printing 1905 as single franking on registered cover to Trotha near Halle a.d. Saale, cancelled twice with single-circle TSINGTAU 15 6 08 KIAUTSCHOU ..., Halle-Trotha double-circle arrival mark (6.7.1908) on reverse, one short perforation on right side of stamp, age and usage wear typical of the period.