I recently bought a pair of used Carnac mountain bike shoes off of eBay. I was excited when the shoes came in the mail and I was ready to throw some SPD cleats on them when I realized that they didn't fit. I tried the shoes with SPD-SL cleats, and they also don't seem to fit!
Here are some pictures of what I have to work with. The second picture has an SPD cleat for reference to size. I have never seen this configuration before and I was wondering if anyone could help me find a pedal/cleat for this shoe?