In early D&D, both chainmail and plate armor were considered metal armor, and to slow the wearer to 60' per turn. Chainmail cost 40gp, and plate armor 60gp. Their encumbrance was 400 or 500 coins ...
I've played the gamut of D&D editions from 2e, 3e, 4e, and the classic BECMI system, and after a year long hiatus from 4th edition, I'm considering running some "classic" D&D again. I'm aware ...
What are the differences between Holmes, Moldvay, and Mentzer D&D? Also, which one came first?