Without prejudice to the right of the Government to cancel this contract for any other reason, it is agreed that, in view of the fact that the articles to be furnished under this contract, and the designs therefor, are in a state of development, this contract shall be subject to the condition that a certain number of articles, as determined in the specifications, when produced by the tools provided by the Contractor, shall be submitted to a test such as is provided in the specifications. If such articles fail to pass such tests successfully, then in that event the Government may cancel this contract, and in which event the Contractor shall be paid as remuneration as hereinbefore provided in case of cancellation, for causes other than Contractor's default.