11. When he was a young man, he invented the color changing clay pipe trick. 12. His once-omnipresent clay pipe is mostly gone from current representations; Santa has become politically correct. 13. A former clay pipe factory on Springfield Road has been closed and replaced by housing. 14. The artifacts found consisted of clay pipe fragments, gun flints, datable pottery, glass and nails. 15. The aqueduct is mostly of clay pipes with two large spiral towers to release air. 16. The fortress received water from an underground clay pipe leading from the monastery of Tsakhats Kar. 17. To keep in character, we sang bawdy tavern songs in the barracks and smoked clay pipes . 18. Cracked clay pipes pumped sewage into the river. 19. In the 1860s antiquaries attempted to date clay pipe bowls by their evolving shapes and sizes. 20. Clay pipes moved water from Nurabad spring at the foot of Mount Alhak to the building.
