Gen specs navitimer sliderule production project

[db1]

Hi,

I am interested in starting a project for producing a correct per-gen sliderule for our navitimer reps (modern),

Correct the marking and numbering size to be as per the gen.

I have a local factory that is capable of producing slide rules, first I need to send them the inner and outer diameters of the sliderule plus a photo of a gen sliderule (as close, sharp and crisp as possible), they already have the breitling font setup.

Can anyone who has a broken, taken-apart navi can measure the sliderule ?

Thanks,

Db1