I may well be wrong about the gas, but I remember Dad saying when he adopted it that it was fashionable then not then fashionable again, and for some reason the 30s stuck in my mind.

If part of what she is, is her taste in clothes and brollies, then yes, I'd agree.

I'm watching her speech to see what she says that signifies class, but really don't know enough. My totally outsider opinion is that class is irrelevant to her, which fits with my theory of her Australianness - our speech is mixed working and lower middle, in English terms, but some of us 'adjust' it (speak posh) to meet circumstances and some don't.