We're all quite familiar with the famous signature of Richard Esterbrook which graces so many fountain pens, desk sets and pretty much any opportunity to brand something with the Esterbrook name.
I recently picked up another early Esterbrook steel pen box and found that the signature was a bit different than what I remembered.
This led me to start pulling out boxes and what I found was that each time they changed the label design for the back of a steel pen box, someone re-signed the signature. Each time it's slightly different from the time before.
I've gather a few examples and put them in very rough chronological order in a new post out on my site.
I've also gathered the boxes into a single image so it's easier to compare.