Lot 41246 – 1846-66, Collection of stampless mail (9 covers) incl. the earliest known example of the British Postal Agency double arc ds

1846-66, Collection of stampless mail incl. the earliest known example of the British Postal Agency double arc ds (AP 20 1846, according to Parmenter & Gordon) alongside forwarding agent cachet of Frederick W. Byrne; cover with JY 23 1846 double arc ds, ; 1849 cover from Chile with « COPIAPO / FRANC » hs (unrecorded in Tizon), « PANAMA 26 NO 1849 / TRANSIT » ds and PANAMA / TRANSIT » hs; 1851 cover from Valparaiso with « PANAMA / TRANSIT » hs, 1853 cover from Callao with « VAPOR / LIMA / 1853 » and « PANAMA / TRANSIT » hs; 1861 cover from Chile to USA with « PAID – TO / PANAMA » hs; 1862 « Cobija correspondence » cover with « VIA PANAMA » hs, 1862 cover from Guayaquil with crisp « PAID – TO / PANAMA » and cover from Islay with Panama Transit 3-line ds, fine to very fine group (9)