Uploaded December 2018 | Updated September 2026, 2 weeks ago
Video comparing the differences between Sargent & Greenleaf's standard Triple B and the Triple B Special which was meant to be operated in an inverted (upside-down) position. This was used in rare instances where the boltwork of the safe or vault door were in an unusual position requiring this design. This must have been a rare occurrence. There is only one Triple B and one Triple D Special known to this author.
Video comparing the differences between Sargent & Greenleaf's standard Triple B and the Triple B Special which was meant to be operated in an inverted (upside-down) position. This was used in rare instances where the boltwork of the safe or vault door were in an unusual position requiring this design. This must have been a rare occurrence. There is only one Triple B and one Triple D Special known to this author.
