Starting from the top:

Leica T (2014)
Leica R8 (1996)
Leica M7 (2002)
Leica M9 (2009)
Leica R7 (1994)
Leica IIIg (1957)
Leica X1 (2010)

Classic Leica cameras with finishes from vulcanite to hand polished aluminium.  Need to add more models released from 1957 to 1994 to my collection!  Any recommendations?