My meteorites are from the witnessed fall at Tatahouine, Tunisia, 27th June 1931.
They are classified NWA 1877 - Olivine Diogenite.
Beryllium-Neon cosmic ray measurements indicate that the entire Tatahouine mass traveled in space as a meteoroid for approximately 38 million years. Meteoriticists have studied a proposed impact event believed to have occurred on the differentiated asteroid (4)Vesta.
Due to its intrinsic properties, Tatahouine is classified by petrologists, as a DIOGENITE class meteorite. Diogenites are part of the greater class of achrondritic "H-E-D" family of meteorites, or Howardites, Eucrites, and Diogenites, the basic three types of classifications well accepted to be from the (4) Vesta impact event described. This fact corresponds nicely with the (4)Vesta parent body theory for Tatahouine, as all Diogenites are currently considered to be from (4)Vesta.
http://www.diogenite.com/tata1.htm