539. General rule as to means of payment
(1) Shares allotted by a company may be paid up in money or money's worth (including goodwill and know-how).
(2) This section does not prevent a company—
(a) from allotting bonus shares to its members, or
(b) from paying up, with sums available for the purpose, any amounts for the time being unpaid on any of its shares.
(3) This section has effect subject to the following provisions of this Chapter (additional rules for public companies).