I recently noticed that my SE block had a different color chimney cap on one of the four stacks. I thought this was unusual so I looked it up in the Greenbook. Well the picture in Greenbook had one different also, but upon closer examination it was not the same one that was different on my piece. I have piece number 1727 and the gray cap is on the large chimney on the FLAG side of the building but in the Greenbook picture the gray chimney cap is on the opposite side. Any feedback?

Herb.