Note: I have received several inquiries about the paint mark on the part. Here is my response:
I use paint to identify the part as one I have sold. I use the paint in places that identify the part as not having been tampered with (disassembled, etc.) and as the part that came from my stock (for warranty returns). You are certainly welcome to remove the paint mark from the part, as long as you understand that there will be no warranty return for such a part.
Each used part is tested and guaranteed, as long as the paint marks are not disturbed.
Note that ebay has a time limit of 30 days to refund your purchase. After that time, no returns will be accepted.