Not exactly evidence with any authority. Not a single source listed.
Here's the best argument for these not being brothel tokens. Lack of control. Enterprising gentlemen would have altered large cents themselves before arriving at the bordello. Not that hard to do. Pretty sure that any bordello using these would have become the hottest place in town, right up until the madam figured out that she was redeeming more tokens than she was selling.
And the latter half of the 19th century would have gentlemen moaning about the rate of inflation, as they used to get "Laid for a Largie."