Well he emailed me back and this is what he said,
"Hi, I have tried to attach pics, but I am not very computer savey so I hope I don't make an error. Please let me know if they don't come through. I have always heard that the way to check for a full choke is to try and insert a dime down the barrel, if it goes in it is not a full choke, so that is why I included a pic of the dime sitting edge wise on the barrel. The other pic is to reference wear the full choke mark is on the barrel and the final pic is the full choke marking you requested. The reserve is $600.00. Thank you and have a nice day, good luck bidding. John"
I don't think I will be bidding on this, since the reserve is $600, although it really, really is calling me.