In the past few years, we have covered plenty of amazing Nixie clocks here. This Nixie Tube Train Clock is also worth a look. It is a handmade clock with 4 x IN-12 Nixie tubes. It has easily removable and replaceable tubes. It doesn’t require any soldering to install new tubes.
This railway Nixie clock has buttons to set time easily. You can find out more about it here.