Numbered maps and plans that originally formed part of a classification system that was in operation from 1978 until about 1990. This system used a numeric/alph/numeric code (e.g. 18/M/2) and includes maps and plans that were originally part of a pre1978 classification system (subseries 7/6/2). The series was discontinued after the introduction of a computer based drafting system, G.I.S. (Geographic Information System)
Some of the series only exists in the form of 35mm aperture cards, the originals having been destroyed after the microfilming process was completed c1978-1979.
The plans were organised into this numbering sequence by Owen Rogers and Diane Ramage/Fazzini, under the direction of David Evans, Deputy city Planner. Plans were drawn by the Town/City Planning Department by staff of the Palmerston North City Council.