For the last couple of years or so I have been trying to put together a set of these DU coins, some people call then tokens, some call them medallions. About a month ago I finally completed the set thru 2019. I have been told that because of the pandemic they did not produce the coins in 2020 and they are not producing the coins in 2021 and that the series may be over and not produced any more.
The coin series actually started in 1996, but in 1987 they produced a 50th Anniversary coin.
I have been trying to get in touch with Dansco to see if they are producing the custom albums yet, but I have not heard back from them, so for now I put then in a couple of Whitman albums.