And when they did have a Mirror there it was only this little round 4 or 5 Inch thing. Even on some Road Tractors to boot.
By the time I started driving in the early '70's all the heavy trucks had West Coast Mirrors, and I'm sure glad they did.
But again, as the culture would have it, none of the trucks had any Convex Mirrors. I was the first one to put one on any of our trucks. I asked the Mechanic to buy me one, but after about 3 times and still nothing, I just went out and bought my own, lol. (Separate Bolt-ons. I absolutely hated the "Stick-ons").
Some of the other drivers commented on how they liked it. Ask me how many times I was happy it was there...
Bill