New member, question and picture

[MDB]

Hi
My name is Jan, from Norway.
After admiring the Seacraft for a number of years I finally found one second hand and bought it. These boats are not very common in Scandinavia.
I have since been a happy owner of a SC23, twin Merc 150.

My question is due to some difficulties connected to insurance of the boat.
I am buying an optional tracking system giving greater safety against theft and also lower insurance.
This requires the hull identification number.
My boat has been repainted in the past and I have difficulties reading the engraved identification number on the transom ( outside starboard )
I can read a few numbers, looking something like S??C?3711??? (“?” indicating the unreadable) does this make any sense at all ?
My hope is that someone can explain the logic in the number sequence, i.e. : xx letters and xx numbers and their significance ?
Or perhaps even better, is this number located elsewhere on the boat ?

Any help appreciated

So a couple, not so good, pictures of the boat in water.
/Jan