Markings 69 forged steel crank

[Sixtyeight]

Hi,

Recently purchased a project 69 Charger with a 69 build, 70 HP 440 with it.
Opened it up and came across these markings on the crank, does anyone know what they mean?

Thanks, Jeroen.

[BSB67]

First pic is typical factory casting stuff of no significant meaning.  Second and third pic are from the machine shop that did a previous rebuild.  Meaning unknown to me.  Shop name, person's name, date?? Seems to heavy to be the bob weight.   

[John_Kunkel]

The stamping on the counterweight might be the balance job number....many shops do this so that replacement parts can be weight-matched.