messograf | Tuesday, January 5, 2016
12:09 AM
I thought I had lost it, but after many months, it has reappeared! This is a #messograf pen, from #germany, but it is really a pocket #vernier calliper, which allows for very accurate measurements. This is how it works - measuring the width of an iPhone cable. The first notch gives you the rough measure. It’s 3mm plus. Then, you look to see which of the other notches is mostly closely in perfect line with the measuring scale. It looks like the 8th one. The cable is 3.8mm in diameter. #stationery
