I have had the Randall #1 since the 70's and the #14 shortly afterwards. Bought the #14 at Randall in Orlando. Have a couple more that I have never used because they are too expensive to scratch.
Randall designs are good, and if you get in your time machine, in the 1960's, you bought your knives at K Mart, the hardware store, or military surplus stores, and the selection was limited. Custom knife makers made designs for purposes that the commercial manufacturers ignored. Particularly when it came to knives whose primary purpose was to kill fellow human beings. Dan Dennehy sold this model, and it should be obvious, it has never been used. But it was an alternative to the Kabar, and there were not many alternatives to Kabar's at the time.
The problem at the time, was finding custom knife makers, as this was before the internet. If they did not advertise in shooting magazines, you never heard about them.
I will say, since the late 1980's, the commercial market really stepped up and you no longer need to go to a custom knife maker to find a good knife pattern, made of good steels. There is no need to buy a custom knife as there are so many excellent and affordable alternatives in factory knives. Most custom knives are so expensive, the owners won't use them, and you can count me in that category. And you would be right if you stated
"it is pretty stupid to own a knife too expensive to use!".
One shooting bud, he was deployed all over the earth. If pressed, the American Government would deny that these deployments ever occurred, but anyway he carried "throw away knives". Good knives that were cheap enough that if lost, he was not out a lot of money.