... 10-15 tears ago I recieved a sample proof album that allowed us to lock the original 4x5/5x5 images into the album via a post that was non-removable by the client without destroying the book.

The pages themselves were copy resistant and included a notice regarding copyright on each one.

I think the name of the line was 'Proof-Lok' or some such ... anyone remember the name of the product or the supplier?