This is an original 1934 Bugatti Molsheim letterhead, especially for invoices, dated November 5, 1934.

Roughly translated it says:

As per your letter of the 30th of October 1934, the following has been sent to you by registered mail:

1 Scintilla Switch 95.00 Francs
1 Key 7.50 Francs

Discount 10 %

Postage: 4.40 francs
Packaging: 1.00 Franc
Total: 97.65 francs

It was sent to a now defunct Bugatti dealer in France's Brittany (Bretagne).

A great period "Molsheim Internal" Item!

Only 1 pc. available of course.