Decode vin and trim tag

[Tirfryr]

Can someone please help me decode the vin and cowl tag.
1948 Buick Roadmaster
Vin number 51933527

I know it is a model 70 Roadmaster and believe the color is Regency Blue.
I cannot find any information for interior color, city where it was built, etc.
The car does have the "Dynaflow" logos on both front fenders.
Any help would be greatly appreciated!

 

[TODD]

Engine number - could be used by some authorities as the VIN
5193352 = sequential engine number - first '48 engine was 4999881
7 = used in Roadmaster series - 320 cu inch

For the serial number of the car (separate plate):
2 = assembly plant - Southgate, CA
5002588 = frame or serial number of the car (first '48 Southgate car was 4820001)

For the body data plate:
MODEL
blank - should be stamped 71 for Roadmaster 4-dr sedan

STYLE
4 = Buick
7 = Roadmaster series 70
69 = 4-dr sedan

BODY
C = Built in Southgate plant
4838 = body serial number - 4838th style 4769 built at Southgate

TRIM
76 = Grey Heather Bedford cord

PAINT
818 = Regency Blue poly (metallic) - probably should be stamped 4818, similar Southgate plates we have seen around this time had a 4-digit code that includes the model year

1948 was the first year for the Dynaflow. Only the Roadmaster series had it (as an option).

 

[Tirfryr]

Todd,
Thank you so much for the help!