Thank you for posting that.
It's interesting that the symbol has survived the demise of
BR▸ and become the accepted sign for a railway station (although I do recall one station, somewhere in Berkshire I think, having a "steam engine" sign, back in the early 90s; I only saw it while driving past though) while the "steam engine" symbol is still used on road signs warning of unbarriered level crossings.
In the mid-90s I was in New Zealand when they decided to introduce the "steam engine" sign on their level crossing warnings. I can't remember what they had before that, but of course there were protests that people wouldn't know what it meant. There were several of us watching the news together when that was reported and one joked that it could mean "toy shop ahead"!
In some countries, of course, a steam engine sign is still used to indicate a station.