To me a brick is two inches by 4 by 8. An oil drum is tougher but by some mathematical reason 55 gallons is approximately 4 times as many liters since a liter is just over a quart. Then by the well know conversion of liters to cubic inches ther is another factor of about 61 and my calculator shows 13240 cubic inches is 55x4x61. Then one has to sort of remember how oil drums were used as highway barriers before the orange and white plastic ones with yellow blinkers on the top. Guessing 30 inches high gives too big of a diameter. That is under waist high. More at shoulder height sitting in a chair is 45 inches. Yes that gives about 34 inches for diameter. I have no idea who made the barrels most familiar to me. I would identify them by the bung plugs which had two inner ears each pierced by a single hole. They could be removed by a tab welded to a bar in a tee shape as a key. The most familiar bricks had round holes in the center and were used for veneer. Any bricks with names stamped or embossed I saw much later as brick streets were taken up. A given location perhaps from years of maintenance always had a myriad of names. The brick and mortar was imported separately and parented in Poser to make the wall from three groups. It was textured in Poser. Using a photograph or Poser's tileing and brick method gives too flat of bricks but a lot less memory required. This is not a displacemnt map either as I am still puzzled by how to get fine results in Carrara with what is now there. I just postition dozens of proportioned cubes in horizontal lines spaced for mortar gaps and vertically spaced for mortar gaps. I originally would render these and use them for textures like a photograph. I like this light and shadow better now that I have more memory. No need to fiddle with flat maps and offsets either as they vary by application.