Interesting. I actually don't know that much about 75's. It was sold as a used/surplus 75B for 400 which seemed like a reasonable price.You couldn't get them in the US because of an embargo on Czechoslovakia (Cold War). That is why my 75 series pistols and my TA90s are all Tanfoglios. Tanfoglios are just as good and some were better, but are slightly modified. Italy was known for their excellent manufacturing of arms.
"With the U.S. market opening big-time for CZ following the thaw of Cold War tensions after 1992." (Guns.com)
You could get them through Canada, or US Service Personnel. You may have a rare CZ.