[Tagging] How to tag monumental railcars

[Tijmen Stam]

On 10-05-17 13:15, Andy Mabbett wrote:
> On 10 May 2017 at 10:24, Martin Koppenhoefer <dieterdreist at gmail.com> wrote:
>
>> I believe in British English it should be "waggon".
>
> "Waggon was preferred in British English until a century ago and it
> still appears occasionally, but it is fast becoming archaic. In this
> century, the shorter one is preferred in all main varieties of
> English."
>
> http://grammarist.com/spelling/wagon-waggon/
>
>

I think I'm setting for historic=railway_car
Which is the name Wikipedia uses for one item of railway rolling stock 
which is not a locomotive (be it a freight or passenger car
https://en.wikipedia.org/wiki/Railroad_car

Railcar, in the UK rail parlance, means a single-car powered passenger 
car with driver stands (usually) at both ends.

I took the liberty of creating a wiki page (basically copied 
historic:locomotive): 
https://wiki.openstreetmap.org/wiki/Tag:historic%3Drailway_car