Thanks for the input everyone. I've just had a quick google and it looks like a Stratford Stronghold.
Stratford were held in great esteem in their day and manufactured many quality safes, of which the Stronghold range was one. Offering between £3,000 and £5,000 cash cover, this range is well suited to shops and small pubs/clubs.
I hope its the single bitted lock rather than the Kromer Novum. If its the latter I'll have to buy/make a pick to open it. I bought it off ebay for £1 without keys (not been able to contact seller for more info), to practise on, could be full of gold bullion
Cheers Chunk