Structured tags were cut from two fuselage skin sections or an access panel of the YF-12A, s/n 60-6936. What makes these tags especially interesting is the thickness of the structures on the back. All were made from very thin titanium sheets, most likely because titanium has significantly higher strength compared to materials like aluminum.
Additional information:
Dimensions: approx. 88 mm x 37 mm (3.46″ x 1.45″)
There may be a slight difference between the color shades on your screen and those on the actual tags.
