I have 4 of them. 3 newer version and 1 old version. Notice the finish on the top one and the rest of them are different? Also the color of the letters are different too. The top one was made before they "discontinued"(10 years ago).
But let's not change the topic here. I am pretty sure OP's knob is legit and in a mint condition. I would grab one before they are gone gone. GLWS