STP dual oil filter advertisement, "A filter in a filter to double clean your oil"
name: label: Collection Creator
content: Granatelli, Andy, 1923-2013
label: Collection Donor
content: Granatelli, Vincent, 1944-2022
label: Collection Creator
content: Grancor Automotive Specialists
label: Collection Creator
content: Hurricane Hot Rod Association
label: Collection Creator
content: Studebaker Corporation
setName: label: See more items in
content: Andy Granatelli Collection
label: See more items in
content: Andy Granatelli Collection / Series 3: Studebaker Corporation / 3.3: STP, Corporation
unitdate: label: Date
content: undated
container: label: Container
content: Map-folder 5
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs