NWA 5415 is a dark-colored, weathered, Vestan achondrite that was first recovered out of the Saharan Desert in 2002. Upon classification, it was officially published as a Howardite, but the classifying scientist also noted that the meteorite might be a metal-poor mesosiderite. Only a modest amount (approx 1.5kg) was recovered and this meteorite quickly faded into obscurity after it hit the market many years ago. As of this writing, I don't think any subsequent research has been published about it. It is not commonly seen on the collector market now.
Refer to the photo. The black centimeter cube is shown for scale and is not included. You are purchasing a few small fragments similar to the sample shown. Your purchase will include a labeled gemjar for safe storage.