I did some digging. There are some who assume the tradition is from paying the ferryman over the river Styz in Greek mythology. For some pennies left on graves are in remembrance of the deceased, leaving a part of yourself as a show of respect and support.
But the most inspiring accounts, talk about a special custom among the military called the Coin salute - a comaraderie of brothers in arms.
A single penny means someone has visited to pay their respect and as a comfort to the family. A nickel indicates that they were in boot camp together. A dime is left by someone who served with them. But a quarter signifies that they were present when the soldier died.
A finish- I love them
I have more yarn leftover than expected, so I bought a solid gray and will combine the two for another pair of socks.
I have been stockpiling pieces for American Beauty Rose quilt so that i can hand stitch in the evenings.
And, finally more blue skies for my knit the sky scarf.