1956 Roadmaster Decode

[BJK]

I recently became the proud owner of a 56 Roadmaster.

I was told by the seller that the interior is original with original factory seat covers. Haven't yet started to perform surgery to confirm but I was looking to decode the various ID plate info. Would appreciate any information anyone would like to offer. Below is the complete plate info..

1956 MOD 72
STYLE NO 56-4719
BODY NO BK 445
TRIM NO 734
PAINT NO PLP

The MOD 72 I believe means "4-Door, 6-Passenger Sedan" according to my 56 Buick Shop Manual. It also says that all model 72s have the same style number of 56-4719 but provided no hint at decoding the number.

Thanks in advance for any help.

BJK

[bob k. mando]

sorry, i don't have any books for cars pre-1960. maybe someone else can chime in?