Not sure if anyone has answered this. COTTOLENE is a brand of lard. The cans are occasionally found in Arizona. Similar examples are embossed: COTTOLENE CONTAINS NO HOG FAT USE 1/3 LESS reference: Hull-Walski, Deborah and James Ayres 1989 The Historical Archaeology of Dam Construction Camps in Central Arizona. Volume 3: Laboratory Methods and Dara Computerization. Dames & Moore, Inc., Phoe nix.