The manual is called the 1929-57 Chevrolet Parts and Accessories Catalog and the part is located in section 1.516.
It's free. Gets easier to use over time and is rarely accessed by newbies before posting a question on Stovebolt.
Making one look at the link helps orient the viewer's mind to a source of information to improve their future searching skills.
It's kinda like on-line OJT to help others to help others with newbies questions.