Craftsman ratchets with grease fitting in the head

[rickhigginshtbr]

time to dig this thread back up... just left sears as of today, and swapped out 7 of my ratchets for the oilers. But, I noticed there are some oilers that say "oil" right above the hole, and some that don't. Any idea on when the ones that say "oil" were produced?

 

[123Go]

Still have several this style from my large sets since early 70's.
I use mine so much all the oil/grease keeps their outsides from rusting up so I never have to polish/wax mine at all...lol.