Missed the edit - wanted to add that I would never have guessed how the two records compare - current hour on a track bike vs (paced) penny farthing hour.
Victor Campenaerts, on a track bike in April 2019, couldn’t improve on the penny farthing record by 50%!
Okay, I totally misunderstood the thread title. I honestly thought some tech company was showing off its miniaturization skills by engraving grooves on a penny farthing coin and turning it into a one hour phonograph record.