The earliest Paleo Hebrew inscriptions dated about 1000BC were nearly identical to the earliest Phoenician alphabet carvings. Over the next several hundred years, regional characteristics began to separate the script into different national alphabets (all within 100-200 miles), including Israelite, Samaritan, Moabite, Edomite, Phoenician, and Old Aramaic. Even within those smaller regions, the script also changed due to the writing medium changes, i.e. chiseled stone, clay, papyrus, etc.
The explanations and products on our website occasionally use some of the regional variants that help demonstrate the functional meanings of the words depicted.