Complex sentence: At the 513 address was a salesroom and at 529 was a 5-story building of the packing department, which was was built by Kinney Brothers in 1888 after moving from West Broadway.
Split into simpler sentences: At the 513 address was a salesroom and at 529 was a 5-story building of the packing department. The building was built by Kinney Brothers in 1888 after moving from West Broadway.