The Sandy Alomar cards are great examples of the four variations. https://www.tcdb.com/ViewCard.cfm/sid/128/cid/45178?PageIndex=1
There are two areas that largely change, the copyright info either has a period after Inc. or does not have a period Inc
The header above the stats saying "Recent Major League Performance" is followed by the word "Denotes". This word either has an asterisk before the word (*Denotes) or asterisks both before and after the word (*Denotes*).
The combinations of these variations create the four alternatives.