Kerry, I have the one that you so kindly sent me that is indeed for the KE-4. It was made in Oshkosh and probably could fit a KG/KF but the instructions are for the KE-4. My original 1947 KE-4 does have that aftermarket rear handle. It is too bad that the KE-4 does not have much following as it is a sweet motor. I restored mine several years ago and did not get around to running it until two years ago. That was a mistake, as I love it. I took it to our Midwest chapter meet last year. Smooth easy starting quiet motor. Great fishing motor for immediately post war production.
Steve