I know what you mean. Had four unopened packages of oilers marked Rock-Ola. Curiosity got the best of me I had to open them. The first was six IS oilers, the second 5 IS and 1 IU, the third and forth were all IR. Which I was very happy to see. Kept all the packages though. Now all I need is to find some more early Rock-Ola guns to go with them, yeah right. And move a bunch of mint IS oilers.