Notice it says, 'Property of A Rowland and Son', not 'made by'. Rowland was a major operator in the early days and his badges are on Matthewson, Doughty & Barrett and Mason machines. Presumably Rowland made the enamels in hope that if any of his machines were mislaid or stolen, they might be returned...
Bob told us a little more about Rowland & Son here
The cabinet style is quite similar to the Doughty & Barrett horse race game. The little rooftop with metal flashing is to keep the rain out, as pre-dating the cosy penny arcade, they were frequently sited outdoors, often seen on old postcards, grouped together with the aforementioned games, on the front of the pier.
If you just bought this, I think you got a bargain. £200 for a machine patented in 1889!