Can you find an architects cornerstone?

Walton Panton also designed the 1909 Public Library and Tighnafeile House at 62 Wai-iti Rd, Timaru was built in 1911 - 1912 for Mr and Mrs John Matheson and their six children.

When we build let us think that we build forever. Let it not be for the present delight, nor for the present use alone; let it be such work as our descendants will thank us for and let us think, as we lay stone on stone, that a time will come when those stones will be held sacred because our hands have touch them, and that men will say as they look upon the labour and wrought substance of them, "See, this our fathers did for us". John Raskin