Saw one pass me up the other day ... not bad condition, but I had never seen the H moniker. Hertz?
According to the post gt350clone referred to this is a possible combination although white with blue stripes are more associated with the 1965 Shelby GT350's. Honestly, it could be a clone you saw. There are plenty of them out there since a real one is pretty pricey. I was lucky enough to see up close a real black and gold Hertz a guy owned about 5 miles from my house before he sold it. I got lots of pics and have been using them to help set up my car ever since.White with Blue stripes is what I saw.