11102310029345 is actually

111.023-10-029345

Here is the designation key:

111 -Chassis Model- 220SEb
.023 - Type - Cab./Conv
1 -LHD
0 -Manual Trans
029345..Serial #
That Chassis came w/127.984 type engine.

The Mercedes Classic Center [D] has a free Data Card service for that car.. Give them the VIN and they will send you the production Data Card with every option and code for that particular car as it was ordered and produced.
Very nice to have..I am surprised it did not come with the documentation.

MBCC
HPC 096/R051
70546 Stuttgart
Germany

Fax ++ 49 7 11/17-8 34 56

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A Dalton