Stock buckle

We were snowed in after a blizzard in Virginia.  My dad finds an old box from somewhere and we dig in to find family treasures galore.

What in the world is this? (Next to the pen.)

We had no clue.  Good thing it was inside a labeled envelope. 

"Silver stock buckle.  This stock buckle was made from Mexican silver dollars and worn by Jonathan Pearson, father of Isaac, therefore great-great grandfather of the Webber Quartette."

My grandpa Roger Pearson Webber was the eldest of the Webber Quartette.

Family member name: Jonathan Pearson 
Lifetime: 1766-1841
Tree branch: Pearson
Relation: My 4x great grandfather

Now we know who, but still, what is a stock buckle?  It's a buckle for a stock.  Duh.  When looking at paintings of men from the 1700s and early 1800s, it's common for them to be wearing a wrapped, folded white linen cloth around their necks.  It's the predecessor to the neck tie, and it's called a stock.  It was the most formal of neckwear.  The stock was wrapped around the neck and had tabs like buttonholes in the back where the stock was secured with a stock buckle.  A stock buckle was often silver and sometimes embellished with gems.  It was jewelry for men.

We don't know what Jonathan Pearson looked like, but here is a photograph of his son, Isaac, wearing a stock.  I like to think he's wearing his father's stock buckle.  I realize how rare it is to possess something that belonged to a great great great great grandfather.  I'm grateful.

Now, the question remains, where did a family in the early 1800s from Maine procure Mexican silver dollars in order to make this stock buckle?  The plot thickens.