In this note we present a reconstructive algorithm for solving the cross-sectional pipe area from boundary measurements in a tree network with one inaccessible end. This is equivalent to reconstructing the first order perturbation to a wave equation on a quantum graph from boundary measurements at all network ends except one. The method presented here is based on a time reversal bound... https://www.diegojavierfares.com/flash-buy-Ambal-D-Zoya-Two-Tone-Knee-Length-Kurtis-p28495-great-pick/