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Locksmithing/need help unlocking Mosler Combination Safe Without the known combination


hello , I was given a Vintage Antique  Mosler fire/burglary  combination floor safe.It had been in a Restaurant for some-odd 30 to 40 years...My friend who owned the place said he had forgotten it years ago and also said he could not remember if anything was in it!( He laughed}So here I am with a nice combo safe , don't have combo , and cannot open it.....Can you maybe help ?? I noticed two small metal plates attached to the front of the safe. One is at the top and other is at the bottom.....Did perhaps  Mosler put the numbers on a "Quote" model number plate and when reversed would be factory set code to use if combo lost ?? The numbers are 337950 and I was thinking 0 95 37 3 or maybe 0 95 3 73 ....It has a lot of play at the 95 number.I don't want to do anything but unlock it...Locksmiths in town have a bunch of weird and very costly ideas that would damage and lessen the value. As well as since I don't know there is or is not anything in the safe I do not want them to get $300 and one half of any valuables inside Please, let me hear from you as soon as possible either thru email or text or email to my phone ! Thank you so very much .....Jack

Hi Jackie,

first off as you safe didn't come from a grape harvest,  or wine bottling it can't possibly be "Vintage".   Secondly, with a serial number of 337950 the safe is ONLY late 1930's or early 40's.   As it is NOT over 100 years old it can't be an antique safe.    While it is older, it may not even be collectible.

As for the combination,  manufacturers set every safe on an individual and unique combination.    The only way the serial number relates to the combination is through the manufacturer.    They could check the original records to find out what combination the safe left the factory set on.

As Mosler has been out of business for about 15 years now, contacting them is going to be difficult.     Manufacturers also never publish any records concerning their safes for obvious security and liability reasons.

This basically leaves you with two options,  you can test all of the possible combinations until you find the correct one,  or you can contact a local safe company to have their safe technician open the safe for you.

Having the safe opened by a trained safe technician should not damage the safe or lessen any value - though as of now,  it basically has a negative value - that being the cost to open and repair the safe.

Note:  I never recommend using locksmiths for safe work as they generally don't have the training or knowledge to work on them without causing excessive damage,  I also don't recommend using anyone who wants 1/2 of the contents.   Doesn't matter whats in the safe, it isn't theirs and that doesn't exhibit a very professional demeanor.

Sorry there aren't any magic fixes, but at least now you should have a better understanding of where you stand.


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Terry V. Andreasen (Andy)


Safe and Vault related Questions; Antique Safe Repair and Restoration; With over 42 years in the Safe & Vault industry, if I can't answer your question I know where to get the answer. Current Project: Restoration of an Ely Norris Cannonball Safe from the early 1900'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.


44 years in the Safe & Vault Industry. Owner and 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 Author of "The Coffee Table Guide to Antique Safes".

SafeCrackers International and the National Antique Safe Association Safe & Vault Technicians Association (SAVTA)

The Coffee Table Guide to Antique Safes

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.

Awards and Honors
2009 - 2015 - Listed in AllExperts Top 50 Experts. All Expert 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

Past/Present Clients
US Secret Service, FBI, BATF, Local Law enforcment agencies, Diebold, Hamilton Pacific, Red Hawk Int., Chubb International, Bank of America, Wells Fargo Bank, Mechanics Bank, El Dorado Savings Bank, many Credit unions and smaller banks. McDonalds, Togos, BurgerKing, TacoBell, Carls Jr. FoodMaxx, SaveMart, Lucky's, Albertson's, Raley's, Safeway, NobHill, Bell Markets, PW Markets. Great America, Century Theatres, Cinemark Theatres, UA Cinemas, and many homeowners and small businesses. Provide warranty service for lock and safe manufactures. Service Area is Northern California (Fresno to Oregon and Western Nevada)

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