Groups of tokens from the 1890's - 1980's include:

Parking
Arcade machines,
Casinos
Toll bridges
Food
Slot machines
Dice machines
Trade stimulators
Vending machines
Saloons
Bars
Cafes
General stores
Cigar stores
Billiard Parlors
Inns
Pinball machines
Penny arcade machines
Chicago arcade tokens
"Good For 5 Cents in Trade"

Makers include:

Mills Novelty
Cigar Store
Buckley
OK Vendor
Green Lantern Kasson, Minn.
Kid McCoy's Bar St Paul, 
ASCO Free Game, 
Ginger Good For 2 Packs Cigarettes
EYEBALL free games
Moss & Keystone
American Billiard Parlor Faribault Minn
Favorite Cafe MPLS Minn 
Mills Nite Club
Dices Faribault Minn 
Evans Slot Tokens
Matt Weber
Nik-O-Loc toilet tokens
Maison Ritz (with a beer glass)
1800's Odom Wiggins Chicago
Midland
HR Cigar Stand Tokens
Mills Novelty OK Vendor Tokens
Mills Novelty Official Golden
ESCO Exhibit Supply Token ***
All Quality Mints
Garrick Cafe
ABT Gun Game Tokens
Selby's F Cafe
Mike Lendway
Silver Cafe Faribault Minn
The Pretzel Inn
Mikes Place
Mohawk Bar
John Mauer
Steve's Lunch
Advance
Better Built by Buckley