We called those header courses. In a common bond wall, every 7th course would be a header course. This gave strength to the wall by tying in the inner and outer courses of the wall. Walls were also 12 " thick, 16" thick and so on. The inner wall would use cheaper "common brick" while the outer wall, that which is seen and exposed to the weather would most often have a harder burnt, or kiln fired brick to withstand water. Common brick are usually very soft and absorb water easily. When laying common brick, they were often dipped in water, as they would absorb the moisture from the mortar, which resulted in a weaker bond. In the good old days before the advent of cinder and concrete block, bricks were laid by the millions. Stone was also a common building material, and were often used together. I could go on for days! I was just discussing a similar scenario on another model train forum concerning the ornate old buildings of the past.
That’s why I create my own latex forms for brick walls. I pour a wall in stripwood forms. With an X-acto knife and dental picks, I carve in mortar lines. Then, I make a latex mold. As in my previous post, I create negative space by removing bricks with a drill and knife. I back that with. A full casting.About ready to give up
I wanted very much to duplicate the O-scale wall...
But with bricks half the size, it makes the project more than twice as difficult.
A veritable tweezer nightmare.
Yeah, as soon as I saw them I knew they would be never be anything more than part of a load of rubble in a gon. At least you tried.A veritable tweezer nightmare.