That article was so poorly formatted I have no idea what the sticker in question actually says or what it looks like.

So, there’s this photo:

And then there’s the third paragraph:

The sticker features a phrase which was also the title of a 1960 pamphlet by George Lincoln Rockwell, who founded the American Nazi Party, HARRC said in a post Monday.

So, it’s probably safe to assume they are referring to the bottom sticker that says “In hoc signo vinces”.

Looking up the George Lincoln Rockwell reference, I did find the pamphlet in question.

I agree it would’ve been nice if the article was clearer about that and didn’t force the readers to do the journalist’s job for them.

The article reads like a chat bot skirting some rules against hate speech or something. Thank you for providing the actual news!

The phrase is much older, but I'm not surprised it's popular with fash.

https://en.wikipedia.org/wiki/In_hoc_signo_vinces

edit: Found the sticker. It's an icon for the Knights Templar. Definitely fashy.