Several fragments totaling ~2 kg were recovered in the Sahara Desert and subsequently purchased by an American dealer in early 2003. Northwest Africa 1955 was classified at Planetary Studies Foundation (P. Siperia) as the first H/L34 chondrite. Other members of this intermediate group include Famenin [3.83.9], Tieschitz [3.6], Bremervörde [3.9], Haxtun , Y-74645 , and Yamato 8424. Initial studies indicate that Dhofar 008 might also belong to this group. The specimen of NWA 1955 shown above is an 8.4 g partial slice. The photo below shows the 389 g main mass.
Photo courtesy of Matt MorganMile High Meteorites