Can you tell me anything about a Kleen Spoon manufactured by the Ferris Factories in York Pa?

I want to know myself. We had one in our kitchen when I was a teenager leaning to cook in the mid-1960s. It had a flat, sharp bottom which was perfect for sweeping the bottom of a pan where the product was likely to stick and scorch such as a pudding or sauce or custard. Very efficient. But it finally broke when someone bore down on it with too much pressure. I finally found a replacement for myself 40 years later in an antique shop. Now all of my siblings are jealous.