I've been searching up and down the internet for some information regarding a wind direction indicator created or distributed by M. C. Stewart Co.
This company is no longer in business, probably for a couple decades now, I've tried searching anything I can about this company and their products. Sadly I cannot find even the slightest bit of info besides the address and phone number which no longer works.
However, I did find a picture of the wind direction indicator box I currently own, it can be found by going to this link and word searching "M. C. Stewart"
For a better description, This box is stained and encases a 9 bulb system that lights up through telephone / telegraph signals. The 8 bulbs that circle on this case references North, North-East, East, South-East, etc. This box I'm also guessing is the Receiver end of the whole system.
The 9th bulb is in the middle and I'm assuming it tells you if it's on/off.
I've read that it can also predict rainfall.
It's been stamped on the back as well as the front "Made in U.S.A, M. C. Stewart Ashburnham Mass