Adding to Quasqueton's post above, OD&D values are all the same as the B/XD&D values with the following exceptions:
OD&D: 50cp = 10sp = (2ep)* = 1gp = (1/2ep)* = (1/5pp)* -- 10 coins = 1 pound
*("If electrum is added it is optionally worth either twice or half the value of Gold. Platinum is five times more valuable than Gold if it is decided to add it to the precious metals list." -- OD&D vol. II, p. 39)
Chainmail: 30gp
OD&D: 50cp = 10sp = (2ep)* = 1gp = (1/2ep)* = (1/5pp)* -- 10 coins = 1 pound
*("If electrum is added it is optionally worth either twice or half the value of Gold. Platinum is five times more valuable than Gold if it is decided to add it to the precious metals list." -- OD&D vol. II, p. 39)
Chainmail: 30gp