The notched 50c is a sample/prototype with purple print - shown next to the issued chip with pink.
Price for sample - $10 shipped
I have two of the issued available at $4 each shipped

The notched $1 is also a sample/prototype. Aqua print and background color vs green. Linen fihish. Looks like Al's CG038604 on chipguide but linen - $8 shipped for this one.
I have two of the issued available at $4 each shipped.
.

.