Lloyd J. Harris Pie Co., “Refrigerated Compartment for Cream Pies,” Digital Collections, accessed December 8, 2025, https://digitalcollections.library.gvsu.edu/document/44588.
A photo of the refrigerated cream pie compartment of a truck. The caption reads: "This heavily insulated compartment has large dole plates across the entire back of this cell which are connected to our main plant at night. This insures a 35 to 40 degree temperature all day long while the pies are in transit."