Unknown Symbol

Lately I have come across these two symbols and while I am of course pretty familiar with the left one, the other one is completely unknown to me. Unfortunately the albedo or reflection of my camera flash rendered the center of the image a bit indistinguishable but I hope the symbols are not that much affected by it. Maybe I will replace it with a better one in a few weeks when I again visit that place.
So long, have fun.

Less Insulation

For no clear reason I have decided to let go of some of my fears, now allowing search engines to index this blog. I do not really know what to do with it, but this seems to be quite a common Web 2.0 phenomenon, so whatever. Perhaps I will find some more of these enigmatic graffiti, as I happen to be kind of interested in them at the moment. And by the way, feel free to inform me of my spelling, grammar, etc. mistakes. I am German, eager to learn and of course going to correct them at once. Thanks.

(!=>)$&£(<=!)

Now that I have secured this blog against search engines and so on, I’m asking the total of probably zero readers whether they have any idea what (!=>)$&£(<=!) could possibly mean. Amidst a German speaking society there once stood a brave school desk, bearing this mark of a marker.

In case you are as helpless as I am, confronting this cryptoanalytic challenge, but not willing to bother about it, just view this post as some random first test post and then find serenity.