rotational symmetry

It’s my birthday today.  I was not going to bother making a big song and dance about it -  it’s nothing special as far as I’m concerned - it’s not a big one with a zero at the end.  

Anniemay, though, is horrified - “but it is significant - it has rotational symmetry.”    

It would appear only two numbers between zero and 100 have this unusual property.  So perhaps it is a bit special after all.  I push the boat out with a cup of tea and a slice of cake in M&S.

The rose, btw, is another David Austin variety - The Shepherdess.


I’m sorry to be behind on commenting - things are just really hectic right now.  Calmer times next week, when I stop rotating.