Bear B-Mag. Question

[DGW]

My B Mag T/D serial B02451 does not have a coin and no hole has been filled. My A Mag has a coin.  
Is this common on some of the risers or was there years that none had a coin?   Thanks Dan

[zepnut]

I believe some of the early ones had no coin.

[DGW]

Thought it was a early one as it has the bears on the back of the latches.
Well one latch has a bear the other one is missing. Thanks