Thirty years ago when I first saw the d4, I was impressed by the novelty of it. That was a long time ago though.
For all of the 1980s, at least from my memory, the d4s that came out had the number rolled read from the bottom of the die.
Well, I noticed that d4s of the last decade at least, have changed, and now the number rolled is read from the top.
I put two d4s I had side to side to see. Here the number 2 that was rolled is read differently, one from the bottom, one from the top.
Even the number sequence is different, unlike say d6s, where opposite die facings equal 7 (1 and 6, 2 and 5, 3 and 4). We see 4, 3, 2 in one die and 1, 2, 3 in the other.:
I wonder if this changes the statistics of the die if the number sequence is different. Probably not, but I don't know.
Anyways wondering why the change to reading the rolled number from the top instead of how it was in the 1980s from the bottom. I can't imagine it's a cost cutting thing at the factory.