This album was titled "special coupling" and contains both albums that are already on this database.
https://vgmdb.net/album/59304
https://vgmdb.net/album/21445
Being sold (or was being sold) at amazon
https://www.amazon.co.jp/gp/product/B00005N20A
The cover is I believe from the back of the case. The file was damaged at the bottom. I don't know what the front looks like.
Also, like to elaborate that the search for the album can get problematic as this series is known as one name "Gunsmith Cats" but the Japanese title of both anime and albums are spaced out "Gun smith Cats". Dunno if this can be resolved so both can be used or not when searching.
I'll leave this to mod how to deal with something like this.