Examples of heraldry with a long and proud tradition
Mustache Man originally got the idea to use the Swastika in Mein Kampf, where he originally described the symbol as a "Hooked Cross". Before this it was mostly just used by occultists who took various European Runic and Hindu symbology to sell their brand of late 19th century Mysticism which is likely how it made its way to early 20th century Nordicist schizos
OP is bait postbut the double headed eagle is an ancient symbol