Patek Philippe

I am selling a Patek 2540 (square from the 50's) and have been asked if I the original box?? does anyone know what type of box it came with.. I have long slim black box where the watch lays flat..Is this Ok..any help appreciated.. Many thanks

Here is image of PP2540

I am looking for the auto model

Thanks

Julian

ITS AUTOMATIC FROM THE TIME YOU WIND IT TILL RESERVE IS GONE (OR YOU STRAIN YOUR FINGERS AND REWIND..!! Im in one of those moods!¨Thanks Brian