Swastikas from the American heartland

[Northwoods]

I sold a razor honing stone with a crooked cross just yesterday. I remember seeing a series of them carved into the face of a large mantle on my travels.

[Uncle Buck]

When my BIL ripped up the wood floor in his old early 1900's home years ago he found swastikas stamped into each piece of the wood flooring on every plank.

[Jarl]

Just adding my two cents regarding the 'symbol' itself. 

I believe it was a sun symbol from antiquity.  It could be found among many ancient cultures and in many different styles.  Also, if anyone recalls those old 'DONT WORRY CLUB' tokens made before and up to the 1930s, had a Swastika on one side of them.