This identifier represents a specific dwelling unit: a manufactured home produced by Harrison in 1983. The dimensions 48 by 26 likely refer to its length and width in feet, and the serial number 245521 serves as a unique identification code for this particular home.
Such identifiers are critical for property records, legal transactions, insurance purposes, and determining compliance with building codes and safety standards applicable at the time of manufacture. The age of the home places it within a period where significant changes in manufactured housing construction and regulation were occurring, potentially influencing its structural design and material composition.