Are Dansco Albums Good?

Utterly makes little CENTS you know. Just how would an Album tone, corrode, tarnish, etc. a coin? You must realize that without some type of gass, air or moisture for example, coins will just sit there and nothing happens. If you place an Album full of coins inside a Zip Lock Plastic Bag, push out as much air as possible, fold over the excess and seal, not much will ever happen to those coins. And note the more coins in the Album, the less air is left in place too.
Presently have over 100 Whitman Ablums in those and so far, no problems for many, many, many years. If something goes wrong in the next few hundred years I'll let you know.

Yes, put the silca pack right in the ziplock with the album. It will not hurt ANYTHING. Silca is very inert. Since the slipcase is not air tight, yes, you still want to use the ziplock and desiccant pack.

If you are in an area of absolutely no crime, no possible future crimes, then off course showing off your coin collection is fantastic. And out in the open where all can see and talk about too, it a wonderful feeling. HOWEVER, there are a few slight problems with this situation. Mostly, in almost every place on Earth, it really doesn't work nowadays. Natually there are a few places that you can lay out valuable items and not worry about them but really not to many.
It may not be your friends nor your relatives that are not trustworthy, but the ones they tell about your fantastically well displayed wealth. In most Psychology classes in college there is an experiment about how stories change. The professor whispers a short story to a pupil. The story is passed on to about 10 students one at a time. The last one stands up and now tells the story. It is almost always 100% different.
By the above I mean a relative of yours will tell someone they know about your coins. They in tern will tell others that will tell others until your fantastic collection on display is worth millions and it is open for all to see.
Such situations happend every day and the results can be really horrible. Just not a great idea with the ecomomy the way it is to display anything of value.

Very interesting topic, I had been looking for some new "zip lock" bags and found a new product, made by zip lock, it is bags of many different sizes, and then they sell a system.

I mean a vacuum pump that once I place an album in the proper bag, there is a slot in the top of the bag you simply place the pump over the slot, which has a cover that keeps the seal intact once the vacuum is done, and I vacuum every bit of excess air out of the bag.

These bags are like the regular bags, in that you can simply un-zip them and re-use them again and again, I also include the desiccant packets in the bags also, try it the pump and the "special bags" sell for less than 15.00 and comes with a starter kit of bags of about a dozen and have 3-4 different sizes.

I place two Morgan dollar albums in one bag and they fit very nicely, good luck, Mike....

I Had bought a Lunar Dragon 3 coin proof set off ebay, when it arrived the capsule that the 1 ounce was in had cracked and a couple weeks later it started to tone. Instead of zip locks I used those bags with the hole that you hook up a vacuum and suck the air out. I think they call them Space Bags or something like that. They sell for between $10-$20 at Walmart but I found a 3 bag set at Harbour Freight for $3. The coin hasn't toned anymore so I am assuming they work pretty good.

When you state OLD I wonder if your referring to those OLD FOLDERS, not Albums. If those are Folders, then the coins were exposed to anything and everything. If they are actually Albums, were the plastic slides in place. Regarless, a call to Whitman Publishing would indicate that they have never used Sulfured type of paper for coins. However, this too may not be accurate since the same people are not there today that were there 50 years ago. Also, not sure if true but I've read somewhere that Whitman has been bought out by someone and old records may now have been lost.
If I were you I'd still check out the area where those coins were stored. Might be a problem in the area.

Are you taking any measures to eliminate moisture/humidity? Ziploc bags with desiccant packs?

I have the original line of Whitmans first releases that were issued for Canadian coins. For example the originals had only one socket for the 1926 five cent piece. These folders date to the late 50's.

These albums were purchased POPULATED as keepsakes in the late 70's and have been populated for some time (That's give or take 30 years fully populated at the very least). I've left them intact as I believe it's not about the coins in them so much as it's an item/entity in itself. I have a separate collection of properly kept and cared for coins.

In the silver holding folders (let's say a no 9065 containing Canadian dimes from 1858 to 1936) all the sterling silver shows a heavy gloss like toning almost as if the coins were varnished on the high points. This is weird but I accept it as part of owning a completed folder. On later silver when they switched to .800 fineness, it's fairly obvious that toning starts at the rim and moves inwards on the coins resulting in some rainbow colour natural toning. I don't know about you but I figure there's something in there reacting with the silver because it's obviously beginning at the point where the coin is touching the album.

In the copper albums (no 9004 Lincoln heads 1909-1940, no 9062 Canada small cent 1920-1957 for example) the copper is evenly toned mostly medium brown and shows glints of red on the high points where the albums touch the coin surfaces. I have noticed absolutely no green except on one 1916-D Lincoln head. Since most of these coins were circulated before populating these albums, I assume they've been exposed to other environmental concerns first. The older large cents (Canada 1858-1920 Whitman no 9061) gives up coins with a very deep chocolate toning.

Anyhow, I don't recommend you start and maintain a collection in these, it's obvious they damage coins but they are a piece of collecting history and interesting in themselves. I treat the albums as curiosities of collecting (see how they USED to do it?) and they receive no special consideration or storage from myself beyond the standard humidity control that is present in my den (because of the books).