In this instance the clue might be in the title and location. Bagnigge Wells got a bad reputation towards the end and this is not the only print that shows prostitutes. There are signs, and even sumptuary laws that designate certain modes of dress, but part of that was knowing someone...

was dressed in a manner that clashed with their social status. There are sumptuary laws that atttempted to enforce this: giving prostitutes the rights to wear luxurious dress (and thus marking them as outsiders). The meanings are very mutable and things slip outside their boundaries as...