Heinrich Köhler 384 Auction – Day 2 Single Lots & Airmail and Zeppelin Mail – inclusive the collection of the Sieger family

1860, Thick figures 60 c. dull grey lilac, three single examples with mostly large margins, tied by Montevideo cds. to entire letter to Buenos Ayres, endorsed ‘Par Mississippi’. Transported Of the River Plate Line. One stamp crossed by file fold, not affecting the fine appearance of this scarce cover. Certificate Hernandez Rocha (2009) (Scott 13a)