Germany: Lufthansa airmail labels

Here are few different design labels from Lufthansa airlines. The labels have very nice design. The Lufthansa logo, an encircled crane in flight, was created in 1918. It was part of the livery of the first German airline, Deutsche Luftreederei GmbH (DLR), which began air service on February 5, 1919. The stylised crane was designed by Professor Otto Firle. I also have a full booklet of 100 labels.

Year: ?, Gummed.

Year: ?, Gummed. Japan.

Year: ?, In Spanish.                                                                            Year: ?, In French.