It is a 1974 Bell start helmet used by Ayrton Senna during the 1975 kart season with dark green visor.
It has been hand signed on the crown by Ayrton Senna, there is also a label inside left chin with the inscription " A DA SILVA"
The helmet bares the Brazilian FIA logo ( Automovel Club Do Brasil)
It has also been signed by Sid Mosca at the back .
The 1975 season brought important go-kart titles to Ayrton Senna: he won two editions of the Canovas Tournament, the Go-Kart 50 Miles, a Summer Tournament and the Itacolomy National Tournament, the Brazilian Runner-Up – Youth Category, the São Paulo Champion – 100cc Category
This is the Boeri Sport helmet used by Hans Joachim Stuck during the 1974 season. It shows extensive sign of use as it was one of 2 helmets he used during the entire season. It was also his first F1 helmet. Signed on the right side.
It is a very rare piece
1977 Jacques Laffite race used helmet signed
Here is another amazing piece of memorabilia. This is a Jacques Laffite race used helmet Signed. It was used during the 1977 Long Beach GP and Spanish GP in Jarama while driving for Ligier.
1978 Jean-Pierre Jarier race used helmet
Jean-Pierre Jarier race helmet used during the 1978 season while with Lotus + ATS
1979 - 1980 Nigel Mansell race used helmet
This original Bell helmet was made for and used by Nigel Mansell during the 1979 F3 season and tests during the 1980 season.