Here is the link to the page in the ERA website that discusses the Spyder:
http://www.erareplicas.com/mk2/spyder.htm
The ERA Spyder is inspired by the only MKII Spyder originally built, the winner at Sebring, which was subsequently crushed and disposed of by Shelby at the direction of the IRS. One can only speculate as to what the original would be worth today were it still to exist.
Jim
PS: If one of the webmaster's here would like to make the thumb print picture bigger, that would be great.