@mattblaze @davebiff I think I still have my Symbol Sourcebook here somewhere. It’s a designer’s reference book of symbols across a fair bit of history. It includes a section on many of these hobo symbols. If I recall, this one means something like “railroad police/others will rob or assault you here”. At least I hope I still have the book, checking out used copies and they’re not inexpensive!

@Swede1952 About a year ago, I traded my delightful five-speed for a vehicle with an automatic, after 13 years of ownership. My left foot will occasionally try to de-clutch when coming to a stop.