have a look at my inn's pages - the British & commercial is the old British hotel on market place, the Commercial is a different building on North Quay - I don't have a photo of it (neither does the Manx Inn book) though it is I think included on a general view of North Quay on my CD Rom - you could try Manx Museum (enquiries@mnh.gov.im) - cost £5 for a laser print or 20pence for a xerox if they have a photo