thanks guys what no 90w oil at the end of shaft 
I'm more inclined to think its an Agressor bowl, however all modern bowls with the exeption of Berkeley,some Legends and some Volvos (which are oil bath) have "greasable tail shaft bushings" this would be/include AT, Dom and Aggressor, energizer etc , typically they (grease lubed) have a snap ring retained single or double seal and a zerk in the shaft plug at the rear . Some very early Dominators (Mar-bud) are "water lubed" , they have no seal and no tail shaft plug and no way to grease Tom
BTW Water lubed bowls can easily be converted to Grease lube with a kit made by AT