- CollectionErne.gru - Ernest A Grunsfeld, Jr. Collection
- File#4113 - Shed & Furnaces for Mr. & Mrs. Walter E. Heller. E.A. Grunsfeld, Architect, Yerkes Assoc. 1941.
- ItemSheet 1 - Sheds for Mr. & Mrs. Heller. Hardlineon paper. 5-29-41.
- ItemSheet 1 - Sheds for Mr. & MRs. Heller. Blueprint. 5-29-41.
- ItemUnidentified drawings of shed.
- ItemSheet 1 - Shed & Fences for Mr. & Mrs. Walter Heller. Hardline on paper. 7-22-41.
- ItemSheet 1 - Shed & Fences for Mr. & MRs. Heller. Blueprint. 7-22-41.
- ItemSheet 2 - Revised Plan of Fence. Hardline on paper. 8-8-41.
- ItemSheet 2 - Revised Plan of Fence. Blueprint. 8-8-41.
