It came fairly clean with just distilled water and a soft cloth, so I'm leaving it alone for now. It was NOT an abrasion. There do seem to be slight imperfections in the lens, but I don't know if they're bubbles or what.
When my husband wakes up from his turkey-induced coma and I have completed the rolls and the green bean casserole for our get together tomorrow, I'll throw him in front of my wall and shoot him with it. I may not get it developed until tomorrow night, though.
I wanted to roll the dice one more time before I stopped doing that in favor of a modern lens. I kind of love this one, though, and I haven't even shot with it yet. It's so TINY.