Thanks George,
That is interesting. I didn’t realise that Dutch royalty were so squeamish (at least, I presume that was why they were removed).
I’m not sure how the one you show was flushed: was it with running water? The one in my photo was flushed with rainwater, so it must have got a bit pongy during a drought. Interestingly, I’ve also found that it was originally sited in the cemetery where my great-grandparents are buried, so its quite conceivable that a relative of mine once had a leak in it