<p>These tools were used for learning how to clandestinely open, read, and reseal envelopes or packages without the recipient’s knowledge. 
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For more information on CIA history and this artifact please visit <a rel="nofollow" class="external text" href="http://www.cia.gov">www.cia.gov</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/59094030@N08">The Central Intelligence Agency</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ciagov/7415424480/">Beginner’s Flaps and Seals Kit</a>