Postcard of Mount Helena in Helena, Montana, U.S. (1900s decade)
<ul><li>Source: <a rel="nofollow" class="external free" href="https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html">https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html</a></li>
<li>Archive of source: <a rel="nofollow" class="external free" href="https://web.archive.org/web/20200716054830/https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html#1">https://web.archive.org/web/20200716054830/https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html#1</a></li></ul>
<p>Postcard of Mount Helena in <a href="https://en.wikipedia.org/wiki/Helena,_Montana" class="extiw" title="w:Helena, Montana">Helena, Montana</a>, U.S., Main Street in the 1900s (decade)
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<ul><li>Source: <a rel="nofollow" class="external free" href="https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html">https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html</a></li>
<li>Archive of source: <a rel="nofollow" class="external free" href="https://web.archive.org/web/20200716054830/https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html#1">https://web.archive.org/web/20200716054830/https://helenair.com/news/local/postcards-show-what-helena-looked-like-100-years-ago/collection_8a7df574-bf04-53a7-8b3c-c9f7b5795057.html#1</a></li></ul>
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