Entire letter written "Salonique 18 avril 1850" to Lyon. Without depart postmark, disinfeted in Semlin - cachet "SANITATS SIGILLUM", 2-line "uber BASEL" and "T.A." (Transit Autriche), canc. "AUTRICHE BEAU FR 1 DE BALE*3.MAI.50", arr. "LYON*4.MAI.50". Postage marking "18" (decimes) as due on arrival. Very fine.