What is really free trade?

The top of each page reads : Free trade v. "fair" trade.

Bibliographic Details
Institution:International Institute of Social History
Format: TEXT
Published: Annie Besant and Charles Bradlaugh, 1881?.
London :
Subjects:
Online Access:http://hdl.handle.net/10622/966FA756-BE4A-41AD-8F5F-6C39B31ED709
Description
Summary:The top of each page reads : Free trade v. "fair" trade.
Published:1881?.