Petromax 809

Hola a todos, acabo de comprar esta Petromax 809 en bastante mal estado aunque parece completa.
Vi en un hilo de hace unos años que es una linterna de gasolina rara. Cualquier información sobre su funcionamiento y cómo encenderla sería de gran ayuda. Por ahora empezaré a limpiarla y restaurarla. Aquí os dejo unas fotos, un saludo.

 

A truely rare lantern.

 

¿Podría ser el año de fabricación?

 

Interesting. The burner looks very much like the one on this lantern
Unknown German Lantern

 

A fine restoration project.

 

That burner looks a lot like AGM

 

Are such Petromax lanterns only found in South America today?
Anyway, it does have the 'Made in Germany' tag.

 

There is another similar 809 in the gallery posted by @Juan
some good information too inc patents

here is a pic of the thread

 

This is the belonging patent of Ehrich & Graetz from 1931 on Espacenet, I've also attached it as PDF. It may well be that it is from 1933. In any case, it bears a resemblance to the Akron lanterns.
There is also a instruction paper 663e from 1931 for this lantern, from which is this excerpt:

 

Thank you all for the information.
I am sending you a detail of the vaporizer .

 

Hello everyone, now is clean and painted but the generator is broken and the main valve need some work

 

Good progress

 

It's cleaned up nicely
Good luck with your generator.