373rd Auction
23-27 June 2020 in Wiesbaden
1857, unpaid letter sheet from Havanna via “NEW YORK APR.15” with tax mark “10” (cent) to London, redirected by forwarded agent and new dispatch from London (28.4.) via Aachen with transit mark “AUS ENGLAND PER AACHEN B 29.4.” to St. Petersburg with arrival mark