William Field. Almost 20 years old. I love the cloth but not the cut; not blaming him, just that my tastes changed.
Know exactly how you feel. I posted a pic of a rope shouldered, ticket-pocketed number last week that fits that same bill. Not nearly as old as your coat though. Yours looks remarkably current given its age--like classic, moderately proportioned clothing should.
As to the businesswear point, please read the numerous comments in which I and others have repeated over and over (and over) that this thread is not exclusively about businesswear. Please also look at a calendar.
In terms of colours/patterns rather than fit/cut, I like this more than almost any of your other looks in this thread so far. There's some real fun in this. The shirt collar works nicely with the overall effect too. Nice one.