The image is too poor for me to rule out a #10A. If the seller gives no guarantee, you could try your luck but I wouldn't risk more than a few dollars. If the seller gives a guarantee and it sells for cheap enough for the condition, then why not try your luck. You can then always post it here with a high quality image to see if we can identify it as a #10A
Then again, I got my #10A on folded letter from
ebay for less than $10 shipped to me. It was part of a two item lot, for less than $10. The seller even put "1851 cover" in the title. I could see the detail in the hair from the seller's picture. The color even looked correct. It was a Buy It Now that would have expired in 20 minutes.