CONE Apostille Question

So I recently received my CONE and have a question about getting the federal apostille for my 1948 case. In the envelope I received, there were two pieces of paper, one the actual CONE and another more of a cover letter saying the signer was authorized to certify the CONE. They are not stapled. Do I need to send both these in for the apostille or just the CONE? Would it be 1 or 2 documents I need to pay for since its not stapled?