Brick Jointers

Jointers come in a variety of shapes and sizes, and almost all are carbon steel. Some of the names are broad, like bricklayer's jointer, and require additional description or a picture to be specific. The first group of names are from Marshalltown's Catalog No. 45, the second group from W. Rose 1929, and the third from various sources:

Bricklayers jointer, for rodded joints, tapering at both ends
Bricklayers jointer,  for rodded joints, one one full size and one end tapering
Bricklayers jointer, for "V" and rodded joints
Bricklayers jointer, for rodded and "V" joints, one end half round, one end half diamond-shaped
Bricklayers jointer, for rodded joints, both ends half round
Beading tool, both ends concave (refers to the tool's profile)
Beading tool, one end concave and one end convex
Beading tool, for stripped joints, both ends flat

Brick jointer, bullhorn
Brick jointer, flat
Brick jointer, convex or crowned
Brick jointer, concave or hollow ground

Brick tuck jointer
Grapevine jointer
Wood handle grapevine jointer
Slicker
Slicker and raker
Adjustable slicker and raker

The most collectible jointers are probably those that are obsolete, for more decorative joints, have wood handles, or are made of bronze or brass. In contrast, the majority of modern jointers are half round, forged from approximately 1/8" sheet stock, and require little or no grinding.
Google Image Result MCAA Masonry Glossary
Wikipedia - Mortar joint
Wikipédia - Joint (maçonnerie)

Tyzack & Son concave jointer

Tyzack & Son concave jointer