I collecting quartz !  I collecting all type of quartz and quartz oscillators. 

   If you wish , please help me ! 

I have about 2000 different quartz crystals.
Here is newest and oldest casing.
Some of this is really old (50 and more year).   

Useful - newest quartz - I exchange it, if I have more then  5 pieces.

List of  my quartz  and quartz oscillators - all values in MHz .
I have more different values, but it is not sorted - time is my big problem.