Found this little mono pusher in a junk drawer. I believe it is from the 1930's - 1940's but don't have any experience with Wittnauer to have the ability to date it properly. The mainspring appears to be busted, and I'm wondering if it is worth it to repair. I've been hunting for a cool mono pusher chrono, but this one is just way too small, so I'd be flipping it regardless if it was repaired or not. Thank you in advanced for everyones thoughts and opinions on this.