ftp://ftp.cse.buffalo.edu/mirror/BSD/FreeBSD-Archive/old-releases/  direct

[DIR]sparc64/  direct  19217+ twin directories
[DIR]powerpc/  direct  19182+ twin directories
[DIR]pc98/  direct  1981+ twin directories
[DIR]ia64/  direct  27596+ twin directories
[DIR]i386/  direct  65535+ twin directories
[DIR]amd64/  direct  28754+ twin directories
[DIR]alpha/  direct  27439+ twin directories