American Geographical Society Map Department Records, 1862-1985,  (bulk bulk 1914-1978)

Arrangement of the Materials

Each architect or firm is assigned a number followed by the assigned plan number. For example, 524 corresponds to architect George Zagel and each of his plans is given a sequential number as they are processed. For example, 524-0001, 0002, 0003, and so on. Names listed on architectural drawings and plans do not reflect all of the individuals who contributed to the project. This practice is reflected in the index.