<li>Metrisk <a href="https://no.wikipedia.org/wiki/Passbit">Passbit-sett</a>.</li>
+ <li>Bolt og muttermålesett for metriske og tommebolter, for eksempel
+ <a href="https://www.amazon.com/dp/B0098JILSW/?tag=powertools0be-20">Ortus
+ Enterprises SAE and Metric Bolt Gauges Check a Thread Nut
+ Fastener Size </a></li>
+
<li><a href="https://www.etsy.com/ca/listing/1028490676/take-heed-antique-warning-label">Take Heed, apparatus predates safety</a>-plakat.</li>
<li>Bøker (alle duger, her er noen ideer). Merk, lenkene går
<ul>
<li>«<a href="https://en.wikipedia.org/wiki/Surely_You%27re_Joking,_Mr._Feynman!">Surely
- You're Joking, Mr. Feynman!</a>» av Feynman,
- Richard</li>
+ You're Joking, Mr. Feynman!</a>» av Richard
+ Feynman</li>
- <li>«<a href="">Locks, Safes, and Security, An International
- Police Reference in Two Volumes</a>» av Marc Weber
- Tobias</li>
+ <li>«<a href="https://www.ccthomas.com/details.cfm?P_ISBN13=9780398070793">Locks,
+ Safes, and Security, An International Police Reference
+ in Two Volumes</a>» av Marc Weber Tobias</li>
<li>«<a href="https://www.lulu.com/en/us/shop/michael-palmer/peckham-boy-the-life-times-of-the-worlds-greatest-safe-cracker/paperback/product-1jnzedkn.html?page=1&pageSize=4">Peckham
Boy the life & times of the world's greatest safe