Mainspring data thread

[brucegill]

Thanks Gunbag ... I will add your info to my database. It just shows that there is variation in sources of information. The Cobham data are from his book and I assume refer to manufacturers' springs; but this is not certain.

Cheers, Phil

What a great the thread! Well done Phil for your info!!! Must have taken you a while to get that together! Thanks for sharing.

Will ad my stuff when I get a chance.