The Technical Report Archive & Image Library (TRAIL) has made a search widget available. The search widget can be embedded on LibGuides or other webpages to help library patrons find digitized historic federal technical reports.
Information on how to add the widget can be found at TRAIL Tools.
To see the TRAIL Widget in action, visit this University of Washington library page (scroll to the bottom of the page).
TRAIL is an initiative to identify, digitize, archive, and provide access to federal technical reports issued prior to 1975.