Pre 1931 Foreign Covers With Numbered Street Addresses

I am currently collecting pre-1931 foreign origin and foreign destination covers with numbered street addresses of either the sender, or of the addressee or of both. The numbered street addresses are important. Any handwriting should be clear and legible. Depending on the address contained on the cover, I might consider a cover as recent as 1950. These covers might be either normal correspondence or advertising covers. It is not a requirment that the covers are franked with rare stamps or are of postal history interest. The collection is not now nor will it be later of sufficient size to allow trade of similar material. If you have covers to offer that fit this description, please send your offer with a description and a pic. Thanking you for your help, I am Mystery Packet.

Perhaps you will receive some offers once you have met the requirements to engage in trade on the forum.

I believe it is 50 posts and 14 days of memebership.