robotron sideart - what's that next to the 4?!?

[buddhavelvet]

Can anyone with an original robotron tell me what is marked on the sideart, just a few inches up from the bottom of the lower right corner of the 4?? It looks like a small light blue TM (trademark) lettering. I've seen it on a couple of the original robotrons (in pictures), not on the restorations. I haven't seen an original robotron in person since 1982    

Please confirm. Thanks!

Here's a couple pics:
http://i1.ebayimg.com/01/i/00/f5/bb/b5_3.JPG
http://i7.ebayimg.com/02/i/00/f4/99/b9_3.JPG

[buddhavelvet]

Here's a closeup of the area/item in question:

It's not a booger.

[2600]

I can't be sure, but to me it looks like TM.

Otherwise I'd go with your original booger theory.

[buddhavelvet]

I posted this question on the Williams yahoo group and received this reply:  

>Well, on my machine it says "T.M." and is actually a small, clear sticker
>with black lettering and not actually painted on. The size of the sticker
>is about 11/16" x 7/16". The location is right where you show it in your
>photo.
>
>Stef van Dijk
>Chapel Hill, NC