murrellington, Also remember that there are the 1971-s and 1972-s 40% silver uncirculated (Blue Ikes) and the same years in 40% silver proof (brown Ikes). All contain silver as jbuck mentioned. There are holes for all of these in the 8176 as you probably saw in the link you posted.
In my 8176 the coins all fit in very snug. I typically press the coin far into the hole, making sure that the slide does not come close to the coin when it is put in. I rarely remove the rear slides, as they are much closer to the coin I had to push in. I am just looking for a 1972 T2 to finish off this set.. I added the additional 1972 types to the album that were not labeled.
coinsearcher83, Check out the Coin World Premier Coin Holders. I have been using them for a while now and they match up with current PCGS
slabs very well. This gives your collection a nice even looks if you have PCGS
and raw coins to house. Nice protection and the ability to add a label. Good customer service too from Amos.