Error examples are: coin-aligned; mules such as the Gold River one side/Isle of Capri the other side; wrong logo, such as the Pioneer errors with the non-Millennium reverses; wrong reverse, such as the Atlantis error.

Mistakes: Misspellings such as the El Cortez limitied, Eldorado Blues Brothers limitied, Plaza missing "i" GAM NG.

Changes of mind: Treasure Island Crossed Swords both sides (Casino decided they didn't like the strike after it was approved by Gaming and placed into play. This category could include the Golden Gate Bridge and Trolley and the McCarran Blackjack Spades.

Foul-ups: Silverton's 2002 Millennium Celebration.

Where do we put some others: the "Wild .999s" such as the Riverside 98-99, the famous Tiger trio; and the "Wild Mintmark" such as the double G Peppermill.
Surely we can refine the categories, creating more. Specific strikes could then be placed in the categories so we can all have a common identification. Sounds like a project for the Chapter, much like our parent club's committee defining terms.

Could also be some work on variations such as the Aladdin three dot, the two and three button $7 skier, the Masquerade Village zero, three and five dots. (This list could be very long.