Stanley No50 small blade adapter

The oft-missing No50 small blade adapter - good overall condition, though it does have some minor corrosion present (see pics) 

this part is used when you want to install the two smallest plow irons on your No50. For more information on the no50, check out this video on YouTube - https://youtu.be/T86kMXkOCkE?si=A9qqzE3kH6OX51JC