There can be no doubt as to the effect of the change of the resolution, by the common council. The original proposal was, from the Bowery to Mangin street. Whether there was any difference in the character of the work by limiting the *333distance to Lewis street does not appear ; but it is evident, from the second resolution, that the work to be done was changed' by excepting portions of the street which had been paved, and by excepting the pavement between the tracks of the railway. It was irregular in the Croton board, under the circumstances, to award a contract which had been made upon proposals to do the work in a different way from that which was contemplated when the notice was published for receiving such proposals. They had no right to make such award, and if it had been done, no assessment made under it would have been valid.
But beyond this, when the work to be done is under a patent, there is no propriety in advertising for proposals, nor in attempting to carry out the provision that the work shall be given to the lowest bidder. There is no opportunity for any competition, in consequence of the patent, and the public officer might more advantageously, and with as much propriety, negotiate for a contract directly, as to receive proposals. The offer, in the present case, was the only one received. It was as much the highest as it was the lowest; and no right to the contract, under such circircumstances, was acquired by the estimate. The provision wlíich. entitles the person making the lowest estimate to have the contract awarded to him- does not apply to such a class of estimates, viz., for patented articles or modes of work.
It is urged, however, that the certificate of the commissioners under the act of 1873 makes it obligatory upon the respondent to execute the contract.
Even if such was the intent of the statute, the certificate of the commissioners is not in accordance with it. The contract submitted to them was one to pave the street from Bowery to Mangin street, while the one they certify to is a contract to pave Lorn Bowery to Lewis street. Then duty was only to examine as to contracts *334that had been entered into within five years preceding, or which shall have been awarded but not executed.
[First Department, Generar Term, at New York, May 5, 1873.Ingraham and Davis, Justices.]
These provisions relate only to contracts which had been previously authorized by the common council; not to contracts made without any ordinance therefor. The contract could not have been made to Mangin street. The commissioners had no power to change it to Lewis street, and the certificate they have given is not a certificate as to any contract then existing, or any contract which had then been awarded, but one which they undertook to make so as to conform it to the subsequent legislation of the common council. They had no such authority, and their certificate gives no validity to the contract.
The order appealed from should be affirmed.