Lined vs Unlined Jackets

[Sanssouci]

Gentlemen,
What was the ratio of lined to unlined coats (frocks, shell, sack) infantry were issued? Were their specific reasons for having it or not, or specific depots/manufacturers which made a point to include a lining or not?

Thanks for the help.
John Turner

[Suppelsa]

Re: Lined vs Unlined Jackets

John,
The search function is your friend.

http://www.authentic-campaigner.com/forum/showthread.php?t=9100&highlight=lined+unlined