Aristo Sewing Cabinet

I picked up this cabinet in an auction and it has a lock. See pictures. Can anyone tell me the style of key that will open this. There's a Singer 401A under the locked door. Thanks.

https://preview.redd.it/q8nhusakuuyc1.png?width=1227&format=png&auto=webp&s=bd6c16485b9aca1f142c3f4b323fc79b59881c63

https://preview.redd.it/0jmboq5luuyc1.jpg?width=6144&format=pjpg&auto=webp&s=9e533a82048869c657d865dd717f222254816821

https://preview.redd.it/rwoectoluuyc1.jpg?width=2736&format=pjpg&auto=webp&s=ece9aa9e863c1b5dcbcaea63028a39700a07d5a8