Front of the Envelope:

·         "Illma. Sra.": This is an abbreviation for "Ilustríssima Senhora," which translates to "Most Illustrious Lady" or "Madam" in Portuguese. It's a formal title of address.

·         "LOTTE FRIEDMANN": This is the name of the recipient.

·         "Hotel Axa": This is the name of the hotel where the recipient was staying.

·         "Poric 32,": This is the street address. "Poric" is likely the name of the street, and "32" is the building number.

·         "PRAHA 2": This indicates the city and postal district. "PRAHA" is Prague, the capital of what was then Czechoslovakia, and "2" is the postal district.

·         "C.S.R.": This stands for "Československá Republika," which is the Czech name for the Czechoslovak Republic.

·         "VIA AEREA": This means "By Airmail."

·         Postmark: The postmark appears to read "São Paulo 17.XI.38"

Back of the Envelope:

·         Postmarks: There are two postmarks. Both appear to read "PRAHA 21.XI.38-13"

Route, Distance, and Delivery Time:

·         Route: The letter was sent from São Paulo, Brazil, to Prague, Czechoslovakia.

·         Distance: The approximate distance between São Paulo and Prague is roughly 9,500 kilometers (about 5,900 miles).

·         Delivery Time: The letter was postmarked in São Paulo on November 17, 1938, and received in Prague on November 21, 1938. This means the delivery time was approximately 4 days.