are there any examples of clinker brick use in SB? Here is SLO, there are a couple of homes in the Monterey Heights area (hill opposite Apple Farm Inn) that used the clinker bricks for exterior and garden walls. Very 'crazy-quilt' in texture, with burnt lumps of blackend, knarled clay along with the typical red clay. Probably from the old brick works which operated on Broad St till the 70's.
...but thinking about it...where did the red clay come from? It's all native black adobe hereabouts. Nearest red clay is in the Sierra foothills. They must have shipped it as dry clay by rail or truck to the coast for firing?