Vintage Cultivator Point Plow Blade Farm Implement 5 1/4" x 1 7/8" USA # 0219. May be from a Planet Junior. I got this in a lot at an estate sale. I do not know what it fits. Item has no manufacturer name on it. Item is marked USA 0219. There is some paint left on. Item shows use, but has a lot of life left in it. Bolt adjusts as it should. ITEM SOLD AS SHOWN AS FOUND PLEASE ASK QUESTIONS AND ASK FOR MORE PHOTOS IF NEEDED THANK YOU.