This lot consists of reference materials pertaining to Elbert S. A. Hubbard: 1) ARA photocopy of his 1960 State Revenue Catalog, 100pp.; 2) "Mail Auction 89" catalog/reference guide from Nutmeg Stamp Sales, October 19, 2004, 46pp.; 3) articles: "Louisiana And Other States Feed 'Inspection' Stamps", by Hubbard; "Louisiana Revenues", by Hubbard; and "Collecting State Revenues Challenging", by Terence Hines!