Vintage IBM Think Sign Turkish Dusun Red-Orange Original Box

Great vintage IBM desk sign is Think in Turkish language, and is complete with detachable foot and original box. The Classic IBM slogan is printed on a silver tone metal plaque (aluminum, I think) that's attached to the older red-orange colored resin plastic sign. The letters of Dusun are impressed slightly in the lightweight metal and colored black. Sign is marked IBM on back and the foot fits neatly into holes in the back and it stands up just fine. I suppose you could hang it on your wall using the holes too, but I haven't tried it. The sign is in very nice vintage condition -- probably it was never used, since it was purchased in its original box. Above and below the foot holes are slight mold marks created during manufacturing. The box has discoloration and one end panel is missing. It's stamped with a partial number that looks like 520-1803, but the last two numbers are incomplete. The previous owner wrote Turkish near the top. Sign measures 9 x 2 3/4.