Close-up oblique photograph of structural clay tile or glazed hollow structural block in Hoffmann-Hayman factory masonry, **23 April 2015** (iPhone 5) — **light-grey** extruded ceramic face carved with parallel **deep vertical flutes** (narrow shadowed grooves alternating with pillow faces), **raised sans-serif stamping** spelling **FRASER CLAY CO.** (**CO.** abbreviated) reading **bottom-to-top** along one flute land; stray **blood-red aerosol/primer splatters** bead across ridges and grout lines; coarse **tan fibrous sheath** (**wood-fiber insulating board** or corrugated cover strip) kisses the unit at frame-right beside a pencil-thin mortar shadow gap — complements **[Fraser Clay terracotta block face photographed 24 October 2014](/assets/images/gallery/20141024-factory-fraser-clay-structural-tile.jpg)** in **this gallery** and ties to the hollow-tile masonry cross-section in **[the expansion hole](/assets/images/gallery/factory-upstairs-expansion-hole-through-original-exterior.jpg)**
** in **this gallery** and ties to the hollow-tile masonry cross-section in **[the expansion hole](/assets/images/gallery/factory-upstairs-expansion-hole-through-original-exterior.jpg)**](/assets/images/gallery/2015-04-23-factory-fraser-clay-co-embossed-mark-vertical-face.jpg)