Where can I buy the ARRI/ZEISS HIGH SPEEDS MKI SUPER35 series

the first generation original series Carl Zeiss High Speed (HS) lenses were first manufactured in 1975. They were among the first Zeiss lenses to have the Zeiss T multicoating, which increases contrast and overall light transmission (T-stop) and reduces flare. They were only available with ARRI Bayonet lens mounts. This mount had been introduced in the mid-1960's on the Arriflex 16SB, 16BL and 35II-C and was ARRI´s lens mount until the introduction of Arri PL mount in the early 1980´s.