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Antique Safes/Gary T-20 safe information


Gary T-20 safe
Gary T-20 safe  
Hi Andy,

I've have a Gary 'above' floor, square door 24x24x39 safe (reported to be a T-20) that I bought to practice on. Its always been an interest to learn about safes and locks and I have very limited skills developed so far.

This safe has a 0-99 numbered dial with the letter "G" centered on it's dial. It is likely original, and squeaks a little when rotated. I can feel the gate opening between 6 and 16, and it is rough turning ccw across the 16 mark, and smooth cw across the 6. What I can't tell is the number of wheels inside this lock as there is practically no information short of what you've posted here on this site (Thanks too!) Assuming it is four as the in floor models is there any other information you can provide on it. I've noticed that when I turn the handle (which is pointing striaght down - pic) CW, the dial rotates CW one gradient or so, is that indicative of an older lock set? Problem?
I plan to spend 30 min to an hour a day playing with it.



Hi Everett,

Basically this is similar to how I got started in this industry about 43 years ago.   Though back then, there was very limited education or books available, and of course - no internet.

Good luck with your new hobby.     If you are interested in this as a career, there are several training facilities throughout the country, with the two most dedicated ones (for safes & vaults) being in Nicholasville, KY.

As far as the lock on this safe, it is probably a Sargent & Greenleaf 6720 series lock, or a similar aftermarket lock (Federal).    These are three wheel locks, with a drive wheel.    The dialing sequence for the lock is going to be:

4 times left to the first number,
3 times right to the second number,
2 times left to the third number,
1 time right, slowly, until the dial stops - should be around 90.

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.

If the dial is as stiff as you indicate, this indicates maintenance issues - which could be a number of things.    Including:   debris under the dial, old stiff grease under the dial or in the lock, debris inside the lock, or even a loose lock mounting screw.

Good luck with your efforts, and welcome to the field.  

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Terry V. Andreasen (Andy)


Safe and Vault related Questions; Antique Safe Repair and Restoration; With over 44 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. Author of "The Coffee Table Guide to Antique Safes". 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

Safecrackers International and the National Antique Safe Association Safe & Vault Technicians Association

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 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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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, including western Nevada

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