Props to the OP at woodnet.
Incra MITER1000SE 1000 w/18-Inch-31-Inch Telescoping Fence & Flip Shop Stop
Engraved stainless steel primary scale for precision accuracy
41 laser cut V-stops for extreme accuracy at all popular angles
Patented GlideLOCK miter bar with 6 expansion points for quick repeats
18- to 31-inch telescoping incremental miter fence for handling a variety of stock widths
INCRA Flip Shop Stop-Fence Positioner for optimal mitering accuracy
By all accounts this is a terrific miter guage. The price shows $124 until you get to the final checkout page, then it deducts 20% for the ongoing sale.