§ 189. Time extended for payment of percentage based on gross
receipts. Every corporation building or operating a street surface
railroad, or a branch or extension thereof, under the provisions of this
article, or chapter two hundred and fifty-two of the laws of eighteen
hundred and eighty-four, which, at any time during the period of six
years prior to January first, nineteen hundred and one, became liable to
pay any percentage based upon the gross receipts of said corporation,
under the provisions of section one hundred and seventy-five of this
article, and which heretofore has paid or hereafter shall pay,
separately or together, the amount of such percentage and, in addition
thereto, interest thereon at the rate of seven per centum per annum,
computed from the time such percentage became due by said section one
hundred and seventy-five up to the time such percentage was or shall be
paid, by virtue of such payment or payments, shall be discharged of
liability with the same force and effect as if the amount of such
percentage had been paid upon the date when it first became due under
the provisions of the said section of this article.