Oldest working Appliance

I have and old International Harvester refrigerator, still works good and 2 old Mixmasters. I gave my mom's(a third) to my daughter and she painted it red and uses it. They were sure built to last. I bought the 2 at a resale shop and took them to the company that made them and had them reconditioned about 20 years ago. Blessings, Indiana Joan