Lot
5043 
1861 (Jun. 8) Spanish Flat Cal. to Biasca, Switzerland, yellow cover bearing 10¢ green (35) strip of three, each cancelled and tied by three strikes of bold "Paid 10" in circle, matching "Spanish Flat, Cal. Jun '8' " balloon-style cds (Williams ELD-3780), red "N.York, Brem. Pk. 'Paid' Jul 6" exchange cds and magenta "16" cent credit rating, carried by NGL Line Bremen from New York Jul. 6th to Bremerhaven arriving Jul. 19th, blue America/über Bremen/Franco" three-line handstamp, reverse transits include Frankfurt (7.21) and Basel (7.22); edge cosmetically improved, Very Fine and attractive use. Estimate $500 - 750.
The Prussian Closed Mail rate to Switzerland was 35¢, since this was only prepaid 30¢, it was accepted and rerouted via Bremen mails at the 19¢ treaty rate. It could also have been sent by PCM for Aachen marked "Paid to Border".