I like B. To my eye it looks more elegant, less strictly utilitarian. In B, I can imagine a person picking up the stamp used to make the mark, spreading the fabric smooth, fingers and thumb spread wide, and, then, placing the stamp firmly on taut fabric, perhaps standing back to see for sure it was a clean transfer. Version A, by contrast could have been done by the grandfather of a modern-day tagger--simply holding the spray can upright over a template carelessly placed on the lining, push the button, and, "Next!". This is completely irrational, I know; I hope no one takes me to much to task over this flight of interpretive fancy. But, you asked, PLATON. B carries with it in its winged emblem an element of style, of deliberate design that compliments the jacket, says, "Yes, this was made with care." (Though I know in wartime the jackets may well not have been made with the care that you or other top repro makers invest in your jackets).