The Security Industry Association (SIA) turned 50 this year, and it’s displaying 50 years of photos from its archives to celebrate. So take a walk down memory lane and click through the photos from a variety of SIA events over the years — and compare the pictures of ISC West’s humble beginnings with what you find in Las Vegas this month. Check it out at www.securityindustry.org.
SIA Celebrates 50 Years Through Photos
![SIA 50 Years](http://www.sdmmag.com/ext/resources/Issues/2019/April/SIA-50-Years.jpg?1554104364)