Three stacks of Canadian 25c coins: a stack of three, a stack of six and a stack of nine.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/52734530@N06">KMR Photography</a> from Toronto, Canada
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/morbokat/16269886909/">Stock Photography - Canadian Coins</a>