Thurn & Taxis, 1852, 1kr black on blue green + 6kr black on rose + 9kr black on yellow. Tied by "215" numeral target cancels on 1858 cover to Giessen, matching "Wiesbaden, 9 Apr" cds, Frankfurt transit backstamp, Very Fine; with 1999 Sem certificate. Michel No. 7b+9aIA+10aII. Scott No. 46  Estimate $200 - 300. $0 (Image)

Thurn & Taxis, 1859, 5sgr lilac. In combination with 1862-63 ¼sgr black + ½sgr orange yellow + 1sgr rose, all tied by "44" numeral target handstamps on 1865 folded letter to Brescia, Italy, matching "Cassel, 1/2" cds at top, Milano transit and receiving backstamps; ¼sgr with defects at left, Fine, still a very scarce 4-color franking; with 1999 Sem certificate. Scott No. 13+15+17+18  Estimate $300 - 400. $0 (Image)

Thurn & Taxis, 1866, ½sgr yellow + 1sgr rose + 3sgr bister. All tied by two strikes of Hamburg "300" numeral target handstamp on 1867 folded letter sheet to Lyon, France, red French exchange cds and reverse with Paris transit and receiving cds's, Very Fine and choice; with 1999 Sem certificate. Michel No. 47+48+50. Estimate  $500 - 750. $0 (Image)