The State may issue as special obligations any of the following types of state securities:
1. Notes;
2. Warrants;
3. Interim debentures;
4. Bonds; and
5. Temporary bonds,
Ê in anticipation of net pledged revenues but not under any circumstances under their terms and the proceedings authorizing their issuance in anticipation of taxes nor in anticipation of gross pledged revenues. Such special obligation state securities may be payable from, secured by a pledge of, and constitute a lien on net pledged revenues.