Try this and do not ever buy a box again
When searching on most sites, select Advanced Search and in the exclude words field enter 'no coin' or -'no coin' on the regular search field. The single quote phrase is standard to Unix. So no more boxes for me.
Or how I was buying when tired
Another day looking for 1994 Silver Eagle coins was actually going quite well. I was doing marvelously on all of the auctions.
When I looked the next day I had lost all of the auctions! Another try will be needed for the coin.
BUT I did win a nifty 1994 Silver Eagle BOX and COA for the rather modest price of $51.00! I JUST CANNOT WAIT TO ADD THIS TO MY COLLECTION!