Presidential Medals

I inherited a binder having Presidential medals from Washington through Reagan (no D mintmarks). But it stops at Reagan. I think the binder is a US Mint product. I find no markings of any other manufacturer on the binder.

There is a listing on Amazon for the binder that also seems to indicate a US Mint origin. I am unable to locate this binder on the US Mint website.

I'd like to get update page(s) to add the medals for the post-Reagan presidents. The binder has room for one more page. Does anybody know:

1) is this a US Mint product (the binder, not the medals)?
2) is it discontinued?
3) did any other manufacturer "take over" the product?
4) are there update pages? from where?
5) any other tidbits of interest about this album. I did find an old CCF thread about D mintmarks on these
https://goccf.com/t/55760