Pennsylvania Statutes Title 53 P.S. Municipal and Quasi-Municipal Corporations § 17036. Receiver to obtain from assessors or district surveyors accurate dimensions of lots subject to registered taxes

The assessors of the several wards of the city of Philadelphia, shall at the same time they make the assessments required by law, ascertain the dimensions or quantity of each lot or piece of ground assessed, and return the same with their assessment to the city commissioners as provided by law;  and whenever the said return shall not be sufficiently certain to enable the receiver of taxes properly to describe any lot or piece of ground, against which he is about to proceed for the recovery of registered taxes, it shall be the duty of the surveyor of the district in which said lot or piece of ground is situated, to furnish to the said receiver an accurate measurement thereof, together with the precise description of its locality.