cover 1900 (28 Apr.) "Maus" 10pf. lettercard (perforations torn off at right) cancelled by "TSINGTAU/KIAUTSCHOU" c.d.s., the reverse bears arrival c.d.s., with 2c. on 3c. tied by lunar cancellation, with Kiaochow company h.s.; a delightful and unusual franking. Photo