Hurricane, is that white LITHIUM grease? If so please don't use it, non-silicone greases cause rubber to swell, deform, burst etc.Thanks all, for the information & advice offered. I've enjoyed learning about these specific pens. Since I don't plan to write with them I won't attempt to fill them either. I do have some white silicone grease so I will lube the piston shaft on the one pen before putting it away.
I did find two Wearever pens with side levers that were mine but I don't honestly remember ever using them in school. I remember having a cartridge fountain pen shortly before getting my first ballpoint.