[WickyNilliams]

Hmm I don't know. Other comments are suggesting that unless you're well studied in nazi symbolism you'd never know. I think I learnt about this in high school history class. I wonder if there's a European/American divide on this topic (I am European)

I think it is probably useful for people to familiarise themselves with Nazi symbolism though. You would be surprised how often you encounter people online using these obscure symbols, knowing most people won't recognise them.