THSH83

Hi I was browsing through my inventory and noticed some extra numbers on bricks, and parts. For example part 48989 ware looking all the same, same shape, same part number, same color. But each had an extra number on them, I wonder what it is? One peace has number 6-01, other had 6-02, some had 3-01 and 4-04.. Now I love to learn so I was curious, what kind of numbers were these, number of year, number of creation, funny... If anyone has information about these numbers I'll be glad to hear them, 'cuse I tried to Google but I found nada...

LDD has no problems placing the archers... Works in both modes, Normal and Extended...