1970-1978 Datsun 240Z 260Z 280Z engine oil dip stick E3002?

The question mark in the title indicates that I'm not sure if this fits the years listed or the models and although I believe it might be the oil dipstick I'm not sure if it is that or another dipstick. I don't believe it would be a transmission because it may perhaps been Emmanuel transmission but I did not know for certain. It is approximately 15 and a half inches long. This is not new and shows signs of use and age. Please use the pictures to help determine the condition of this item. I am selling this item as is.