Here's your pic:
To get it, you go into Flickr, choose Actions--view all sizes, then choose a reasonable size to view. Right click on the image and copy the image URL. Then paste it here as mentioned.
That's a Merriman logo. The company has been out of business for about 30 years or so. You should be able to disassemble the winch and you'll find pawls and springs inside. Some local marine stores carry common Merriman pawls (even West Marine has some) but this isn't a common winch.
One place which has many pawls for Merriman winches is Rigrite See here