Bonjour ?ick,
The S.S. CHRISTIAAN BRUNINGS is a museum steam ship preserved in running order at the VEREENIGING NEDERLANDSCH HISTORISCH SCHEEPVAARTMUSUEM where she is kept in full working order providing trips to the public during summer season. She was constructed of steel in 1900 as tender and pilot boat to the Dutch Icebreakers and to this end she is fitted as a coastal Icebreaker in her own right. This model boat is a faithful replica.
So I guess CB is her name but RU