478. Remuneration for speculative work.

Where studies or designs are submitted merely for approval or speculatively, no claim for remuneration arises unless the work is approved or used1, and similarly in the case of plans or drawings submitted in competition, subject of course to the published terms of the competition2.

Such 'probationary drawings'3 are in the nature of a tender, that is a mere proposal or offer to do work, and without acceptance there is no mutuality on which an implied contract to pay for them can be based.