The top row was iodized to rose, the second row to blue and the third row to 2nd cycle yellow. Column 1 received 10 seconds bromine and to the right, 15, 20, 25, and 30 seconds respectively. The added bromine intensified the colors as can be seen going from left to right. The plate was exposed to light, developed, and the next picture resulted.

The rose color is the brightest of the three and it gets brighter from left to right. The next two rows show more bromine is needed for a thicker layer of iodine to have enough sensitivity. This particular test hit the "window" of bromine for the rose color almost exactly. 5 seconds would have been dark and beyond 30 seconds likely the same would occur. This also demonstrates the greater sensitivity of the 2nd yellow to the blue.