Comments:

BAT KEY:

Names in parentheses indicate that the first name of the player is deduced from various factors

Sig:  The facsimile signature of the player's name is stamped into the barrel of the bat

Block:  The player's name is stamped into the barrel in block letters

Master:  bat used as a template to make a particular player's bat

Side-written only:  Information denoting the player is  written by the factory on the side of the barrel when a player sent his bat in to be used as a prototype for future bats*

Lathe:  Bats used as a guide to place on the lathe to produce a particular player's bats

Hillerich & Son:  1890's - circa 1912:  J. F. Hillerich & Son

Blank:  no brand name whatsoever

Hillerich & Son Co.:  circa 1911-1916:  J.F. Hillerich & Son Co.

Handmade:  no brand name whatsoever

H&B:  Hillerich & Bradsby circa 1916-1980

Adirondack:  Adirondack Bat Co. post 1945

Powerized:  post 1930 H&B

Spalding:  Spalding Sporting Goods Co.

ddd:  dash, dot, dash in H&B center brand circa 1917 - 1922

A.J. Reach:  A.J. Reach Sporting Goods