Vintage Black Leather Birkenstock Oxfords (40) L9M7

This pair of black leather Birkenstocks appear to have not been worn much at all (from the bottom) and small damages were probably incurred during storage. The black spot underneath the lip is from KIWI shoe polish. The laces have been added as I found with no laces at all. The other shoe appears to have some type of glue smudge on the inside heel area, as it does not readily wipe clean. I’ve looked these up for more information, but have yet to find an exact match. Will update price if necessary. Until then, offers always welcome. Thank You.