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Antique Safes/Combination sequence for old safe


I have an old safe, a National Safe & Lock Co. Cleveland Ohio. Serial # 20414871.  It has a Yale and Powne lock, Sanford Conn. Pat. date 1895.  I do not know much about the safe and I was told that it has a 4 number combination.  I have no idea as to the sequence of numbers right left etc.  I would like to be able to use the safe if I can figure out how to go about opening it.

Thank you and best regards,


Hi Ralph,

The Yale locks that were used on these containers were generally the OB series or the 026 Roller Bolt locks.    The majority of these locks were 4 wheel locks (4 combination wheels and 1 drive wheel).   The dialing sequence for the locks is as follows:

Yale OB series -  RLRLR

Yale 026 RB -  LRLRL

5 times Left to the first number,
4 times Right to the second number,
3 times Left to the third number,
2 times Right to the fourth number,
1 time Left until the dial stops.

If this doesn't work, try reversing directions or RLRLR instead of LRLRL.

NOTE:   Left is counter clockwise, Right is clockwise.   DO NOT count the revolutions of the dial, count the individual number as it arrives at the 12 o'clock index mark.    For instance if your first number is 50, you would turn the dial counter clockwise (left), stopping the FIFTH time the number 50 ARRIVES at the 12 o'clock index mark.

If you don't have the combination, then you may need to have someone open and reset or recover the combination for you.

Hopefully this helps,

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Terry V. Andreasen (Andy)


Safe and Vault related Questions; Antique Safe Repair and Restoration; With over 40 years in the Safe & Vault industry, if I can't answer your question I know where to get the answer. Current Project: Restoration of two Tilton & McFarland Safes from the 1860's. Will answer Safe & Vault related questions concerning age, value, restoration, moving, opening & repairing, parts, operation and history. Note: It is not my intention to teach you to open safes or to provide information which may aid in the unlawful opening of a safe. I will not give out drill points or information which I deem inappropriate.


40 years in the Safe & Vault Industry. Service Manager for one of the largest Safe & Vault companies on the West Coast. Graduate of Lockmasters Safe Lock Servicing, Safe lock Manipulation and Safe Deposit Lock Courses. Graduate of Locksmith Institute. Certified Instructor for the California Locksmith Association teaching Basic and Advanced Lock Servicing, Basic Safe opening and Repairing. Factory Trained by AMSEC, LORD Safes, LeFebure, Mosler, KabaMas, LaGard and Sargent & Greenleaf

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Graduate of Locksmith Institute 1972 Graduate Lockmasters Safe Lock Servicing 1974 Graduate Lockmasters Safe Lock Manipulation 1975 Graduate Lockmasters Safe Deposit Lock Servicing 1985 Instructor Certified - California Locksmith Association - 1985 Factory trained by AMSEC, MAJOR, STAR, Johnson-Pacific, Kaba-MAS, Allied-Gary, ISM, Lord, Brown Safe, EXL, Mosler, Diebold.

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2009 - 2013 Listed in AllExperts top 50 Experts. All Experts Categories - Safes & Security Containers, Locksmithing, Antique Safes. Retired US Army Chief Warrant Officer (CW4), with 39 years of total service. With numerous awards from Vietnam, Desert Storm and Operation Iraqi Freedom. US Navy - 1971-1981 US Army Reserve 1984-2013 US Army Retired

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