Sorry if already mentioned. Google search in Books for "6X-382-NTP0038-3u2" brings up one matching book. Patrick Henry's "Give Me Liberty or Give Me Death"

https://www.google.com/search?q=6X-382-NTP0038-3u2&client=firefox-b-1&source=lnms&tbm=bks&sa=X&ved=0ahUKEwiZzaDagPreAhXHyoMKHZzYAqkQ_AUIFCgB&biw=1920&bih=1017