Mark II Production Time-Line

Somewhere in the back of my mind I remember seeing a production time-line for the Mark II. Significant Dates, when new features were introduced, etc.

Has anyone seen such a thing? As the Forum Historian I think such a thing would be an important addition. However, I don't want to "create what's already been created".

If it's in the Mark II Encyclopedia, I missed it. There's no such thing in the LCOC Authenticity Manual. Possibly there was something like this that appeared in the LCOC's Continental Comments, but I haven't seen it,

So, if anyone knows of such a thing, please point me in the right direction.

Thanks

Continental Comments has several articles on the Mark II printed over the years.