Here is the information for your data plate.
Model  2019 D  
20=Pathfinder Deluxe or Laurentian series
19=4 door sedan
D= identifies the car as a Laurentian  (Pathfinder Deluxe has no D)

Serial number
5=1955
2019= 4 door Pathfinder Deluxe or Laurentian
6=145 hp 261 six cylinder
34713  sequence number of all 55 pontiacs built in oshawa in 1955 including sedan deliveries and trucks

Engine number
9= 2 speed powerglide automatic transmission
W=261 six cylinder
25821 sequence number of 261's used in assembly in Oshawa

Trim 632= Light Brown Vinyl / Beige Pattern Garbadine Cloth
This interior was only used on the Laurentian Sedans and Sport Coupes with the paint code 55 H

Paint Code 55H   FireGold Lower/ Shoreline Beige upper panel and roof. It should be noted this paint colour was also available on the Americian Star Chief series for the full 1955 model production year. It bacame available in Canada after Janurary 1955.

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