when was head design changed on super speed razor?

[fisca]

im curious because i have a 55 flair tip with a rounder head, and a 67 black handle with a flat head.
thanks in advance

 

[alex2363]

here is a nice link on Super Speeds http://badgerandblade.com/vb/showthread.php/56974-Super-Speed-Identification

 

[fisca]

cheers for that

 

[alex2363]

cheers for that

Cheerio mate.....