[Leica] I need help with dating cameras/models

[ruben at rhodos.dk (Ruben)]

I bought a lot of 5 leicas at an auction at a resonable price but I am a bit 
confused about the the numbers/models

There are three tread mount cameras

One with no. 1618XX
It came with a summaron 5 cm 1:2,0

One with no. 3072XX
It came with a russian ?? lens

One with no. 4465XX - this one does not have a dial in the front to set slow 
speeds - just a black round thingy
It came with a colapsable elmar 5 cm 3,5

Two M-mount cameras

One with no. 11423XX - nice
It came with a nice summarit 5cm 1: 1,5 with no. 15290XX

One with no. 10539XX - real beaten up
It came with a ok 9 cm 4,0 elmar with a shade

Furthermore two leicameters - one good one dead and a rangefinder thing to 
put in the hot shoe - and two non leica baby box cameras

I have a gesamtkatalog 1968 but i can not figure out what is what

so if there is some nice leica-lister that could either tell me what models 
and what years or point me to a place were I can look it up on the net I 
would be gratefull

Best

Ruben

Ps. I am planning on keeping one M2 with the summarit and sell of the rest 
to finance the M2