Serial Mount And Bladecd Key I Have A 1998, 200hp Mercury Outboard Missing The ID Tag From The Transom Mount. How Do I Find Serial # ?

I have a 1998, 200hp Mercury outboard missing the ID tag from the transom mount. How do I find serial # ? - serial mount and bladecd key

The ID code is inserted in the flat head on the block near the base. Here are the two halves of the categorization. If you live in certain states or insurance documents, they often have the RS in their titles. Good luck!