Paper certs of non-paper or registered bearer bonds are like transporting your tax returns from 10 years ago. Why bother?
BTW — here’s what a real bearer bond looks like:
http://1.bp.blogspot.com/_07Vo5mDNg18/SjG0o3s-hAI/AAAAAAAAACw/qZFWJmppPak/s1600-h/bond1small.jpg
The interest “coupons” on the bottom of the bond would be clipped off and sent in to receive payment, hence the missing coupons on the left.