Trying to decode a few things.

The car is a W123 1978 280CE. Attached are the chassis plates' photos.

Codes:

812: Rear Speakers
248: Rear Window Defroster
585: A/C and Front Power Windows
480: Self Leveling System
466: Central Locking System
420: Auto Trans, Floor shift
Paint Code is 906G Grey Blue Metallic or Light Blue Metallic

VIN: 123.053 12 000710

The 123.053 means Coupe with M100 / CE280

The #1 means left hand drive

The #2 means automatic trans

I think the 000710 means #710 off the assembly line.

No clue what 7109837 means other than maybe M110.983 ? version of the engine, however, it should be M110.984.