I am approaching the Curate's 1200th post and perhaps I should have held onto this for then but I had nothing else to post so impatience won the day.
Above is a screen shot from Wikipedia's entry on wedding anniversaries.
The three columns are "Traditional (US)", "Traditional (UK)" and "Modern (US)".
It was the oak and granite that caught my eye.
"Happy anniversary dear, I bought you a granite headstone!"