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I noticed this item on Ebay today that might appeal to some of the guys on this forum with those neat Spring Special Dodges. Doesn't seem like too bad of a price if you really need one. I think tbm3fan comes to mind that might have one of these models? I think there was also some discussion as to what the emblem should really look like as well. So this NOS one should help.
1973 DODGE POLARA CUSTOM SPRING SPECIAL ROOF PILLAR EMBLEM NOS MOPAR 3749955 VIP
1973 DODGE POLARA CUSTOM SPRING SPECIAL ROOF PILLAR EMBLEM NOS MOPAR 3749955 VIP