Whether there is in it, what is it?

The immersion heater fits perfectly to 0.4 l stainless steel beaker. The water boils in about 4-5 minutes - 0,4l.
What I find strange is that on the immersion heater Made in W-Germany stands (not on the packaging). Are the remainders from 25 years ago? I'm curious; how long he (still) holds.
What I found a shame, the zipper is not in color (in white, so you do not last a lifetime) yet in the quality as on the packaging.
Attention to the spacer can quickly injured, is very sharp.