He said that it was a clear demonstrator and very unusual:
I was used to seeing translucent-barrel Autopoints, which is why I didn’t catch what he was talking about at first. Here’s one example, the fluorescent pink one that I picked up from Michael McNeil a while back:
But on closer examination, the top on my dad’s example is much later than the large gold filled bell tops of the late 1920s:
And the barrel isn’t just translucent – it’s completely colorless!