Question about GPG keys for archived postgresql yum repos

Hello,
I had a quick question. With the new gpg keys for the current postgresql yum repo, the old keys have been removed from https://download.postgresql.org/pub/repos/yum/

Those keys were still active for the https://yum-archive.postgresql.org/ yum repo. Is there a new url, or a url from the yum-archive site to fetch the old gpg key from?

I appreciate any info you can provide.

Thanks,

Andrew Brandes