The industrial revolution had a big part in these profiles. As manufacturing improved, mills were able to combine several previously built-up mouldings into a single profile and make them available to a wider market of consumers. In this collection, we see a heavy use of the ogee and the introduction of the picture mould, which allows artwork to be hung without damaging plaster or fabric on walls. Wainscot featuring a chair rail or plate rail were common in entry ways and other public rooms.