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Antique Safes/John Tann safe


Hi there, I have recently acquired a John Tann safe and would like some information on the model if possible ? I would like to know the year of manufacture, current cash rating and any info regarding its construction if possible .
From my records I believe it to be an early Tann fortress ( same as ratner 8500 ).
The serial number on middle bolt is SB 67360.
It is 32" in height (2315 size)
It has a full length Chrome hinge cover, three spoke Chrome handle and a stainless pull handle on the door . It has a kromer double bitted lock fitted ( flanged case )  and the boltwork is similar to the grade 1a  anti-punch style  . It has a glass plate fitted but only has a single passive relocker connected to this. I will upload some pictures when I get chance. Any information would be appreciated .
Thanks, Regards, Lee

Hello Lee,

Thanks for your question.

Strictly speaking this is not an antique safe and this site is not intended to be a forum for locksmiths, safe engineers or used safe dealers.

However, my records confirm this as a Size 32/2314 John Tann Fortress, which as you correctly observe, is the same as a Ratner 8500.  It was manufactured in early 1962.

The Association of Insurance Surveyors recommend a cash rating of 35,000.

The approximate weight is 1040kg so it would not require base fixing.  It has ABP barriers in both door and body and the rest of the technical spec you already seem to be familiar with.  That's as far as I would want to go on a public forum.


Mike Palmer FSyI
Mike Palmer Consultancy  

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Mike Palmer


I earn my living identifying safes and suggesting cash limits for risk advisors and insurance surveyors in the UK. I'm am pleased to comment on safes manufactured in the UK or Mainland Europe but I am unable to accept questions regarding safes made in the USA or elsewhere.


I have been in the UK safe industry for 40 years and have one of the largest archive databases of old safe literature and serial numbers in the country. I started with Chubb in 1960 and became Assistant Manager of their Bank Security Division before moving on to become the Insurance Liaison Manager with the John Tann Group. I became Sales & Marketing Director for Guardian Safes Limited before semi-retiring. I am a Fellow of the Security Institute and ex-Chairman of Eurosafe UK, a trade body representing the interests of UK safe makers and distributors. I now work as a part time consultant.

I am an advisor to the Safe Committee of the Association of Insurance Surveyors, a Fellow of the Security Institute and founding Chairman of Eurosafe UK.

I have had literally scores of articles published in various security trade publications. So far this year I have had 24 features published in various journals including Keyways, Professional Security, Pawnbroker and Safe India. I have published one book, Peckham Boy, the life and times of the world's greatest safe cracker.

No relevant educational credentials.

Awards and Honors
In 1997 I was awarded the annual shield by the Association of Insurance Surveyors for "..outstanding services to crime prevention"

Past/Present Clients
I have represented or been an agent for the John Tann Group (Stratford, Ratner, Dreadnought and Tann safes); Churchill Safes, Chubb Safe Co Ltd, SLS Safes, SMP Safes, Dudley Safes and several others

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