How many discovered the VDB on newer pennies not 2009

[Jimmy@romega]

Didn't realize VDB was on the 2008 pennies but they are how many out there knew this? I think i saw some on 2006 also any idea when they started doing this?

 

[idahotokens]

The designer's initials were restored to the cent (on Lincoln's bust) in 1918 per my Red Book
John in ID