This is a show helmet used by Sebastian Vettel during the 2013 German GP. It is the exact same helmet as the one he used during the race done by the same designer (Jens Munser) .
Hand signed by Sebastian Vettel
The back sticker bares the following information:
SV: Sebastian Vettel
08/13: helmet# 8 / season 2013
It is a very rare piece at a portion of the price of the race used one.