"Free on Approval. Fifty rare foreign stamps given away with each of our genuine Colonial and Empire issues. Send for free lists and sheets on approval."
When S. & S. Boddington. Ltd composed their advertisement, they could have no idea of the chain of events it would unleash - not least the apparent discovery of a Penny Black stamp in the unlikely location of Bromwich major's locker!
Right: The Penny Black stamp was... red!
Of course, a seasoned stamp-collector may have understood that the offer of free stamps was intended for those who made purchases of more valuable items from the pages of the firm's catalogue. But would-be philatelists Jennings and Darbishire were new to the game, and they could hardly believe their good fortune. "A kindly couple, these Boddingtons, to give so freely to all in need!"