Also, FWIW, 5th edition also didn't have a set symbol, but the "Visions" set was released at around the same time and had a "V" symbol... (I only realized how confusing it was after 27 years lol...
Alpha beta unlimited revised Arabian nights 4th edition ice age mirage etc etc. I'm sure that's all wrong but I used to know it by heart. I keep my cards in old motherboard boxes !