This ad appeared only 59 years ago--that's four generations in dog years, two human generations (or one for the more later-in-life crew, which is appealing as I knew a man whose grandfather was born in the 18th century), and 15 generations in managing data and communications. Perhaps more. It is difficult to imagine the intense surprise that attended this ad showing a practical and popular adaptation of a communications breakthrough.
The electromagnetic telegraph, which is arguably the first electrically-powered iteration of the internet, was in the works from the 1820's until it was nailed by Samuel Morse in 1837. It was 40 years to the development of the Bell telephone (another dramatic example of an invention/technological idea/breakthrough that was "in the wind", a popular undiagnosed monumental meme, some decades in the making in the hands of Bell anbd Reiss and Meucci and Gray and even Edison). Two more decades (just past the turn of the century) until more-widespread wireless telegraphy, another two decades after that (1920's) for poular radio, and another two decades after that (post WWII/1950's) for popular television broadcating. 120 years between the patented invention of the Morse telegraph to 50 million Americans with televisions in 1955.
The "telephone" of 2013 is as removed as the telephone of 1955 as the telephone of 1955 was removed from the electromagnetic telegraph--we're not meeting half-way in the meeting of improbable impossible worlds, of worlds of the future unimagined in the past. That is what comes to mind when I see this add for the speaking telephone in 1954--the astounding, astonishing, speaking telephone, the phone that allowed you to not have the receiver to the ear, tht allowed you to do free-hand work and communicate at the same time. It was an ambitious improvement, and as soon as the phone appeared, it became a standard of necessity if that necessity was within budget.
It is the weight of surprise that is so abundant looking at pictures like this, giving us the opportunity to imagine the surprise elements of another time. It may well be that the new 1954 user of the speakerphone would have looked at the first telephone systems of 1894 as we look on that 1954 telephone today. Probably not so, though, probably it was much more imaginable to have forseen the 1954 possibilities in 1894 than for 1954 to have seen in the same amount of time to 2013: the technological pieces necessary for part of that imagination had not yet been invented, the science ahead of the scifi.
The other part of this surprise element is that 1954 is well within living memory, and that this combinaiton of technology and physics and mathematics has grown so incredibly from the speakerphone to the massive changes in 2013--it is as surprising to imagine this as to imagine the same scenario for what ahppened a year before in biology: it is difficult to grasp the sweeping changes in that field from the identification of DNA in 1953 and how far those fields have come since.
I think that if one could quantify this sort of "surprise" that the greatest amount of "Surprise Integers" (or whatever) ever recorded would have taken place within these past 50 or 60 years. Which makes me wonder--will people 59 years hence see the pictures of our fabulous accomplishments in 2013 as quaint reminders of how much things changed between 2013 and 2072? Will those "Surprise Integers" be as great for that period of time as the ("our") preceding period with concomitant revolutions in thought? My guess is "yes"--its just hard to imagine.