90% "junk" silver $1s worth is 11.94 usd silver content
even with shipping included what is the justification for $18 per dollars ? it does not cost $6 to ship 4 quarters let alone if more then a dollars worth was bought and combined shipping
i see it being sold by some big name places for ~13 per $1
Your free to purchase from other sellers, 90% junk silver carries a premium, and I don't know where you got $13 from, the cheapest bulk suppliers charge ~$14, and most have minimum order quantities. You should also note that I have the coins on hand, I know from first hand experience that many online coin dealers sell more then they have in stock at the time which can result in delays. Im in no rush to sell, my prices are better then similar on eBay, and if someone is interested in a larger order I would be willing to cut them a deal.
I know there are some in my foreign 2x2 lot, but to many to sort through. I might consider doing a "grab bag" style sales for the foreign ones if theres interest for it. Ive seen a few silver ones strewn in there, most of the coins are ~50-100 years old, dealer graded and some are priced:
http://i.imgur.com/bS7pJwa.jpgA true numismatic detected

Thanks for sharing and good luck with the sale.
Thanks!