Bronze sampling

If you would like your bronze casting core tested, get in touch with us via our contact form. We will need to know where the piece is located so we can recommend the closest sampling agent to you, or arrange to come and sample it ourselves.


All sampling is carried out in a darkened room by an accredited agent.

Most bronze pieces are made by casting molten bronze round a clay mould.  In many cases the casting core is left inside the object.  If a thick deposit of fired clay is visible, it will be possible to take a sample simply by scraping through an opening or from the base.

Often there is casting core trapped inside otherwise hollow sections such as handles legs, heads or torsos.  In these cases it is necessary to drill a small hole in the metal to reach the core.

An image of the piece must be submitted with the sample.  This may be an actual photo, or on a CD or emailed to us by the agent. Details are entered onto a data card which is sent along with any photographs and the sample(s) to our laboratory for testing.

Learn more about how the TL testing process works.

Our report

After we have tested your piece, we will issue you with a one-page report. Samples are normally processed within three weeks and once payment is received, preliminary results are emailed or faxed. Original reports will then be posted to you.


Sampling is free if you are in the UK but a travel charge applies outside central London. If you are outside the UK, there will be a separate sampling fee, which you should pay directly to our representative. Testing costs are separate and payable to Oxford Authentication Ltd.

£180 + VAT at current rate
With VAT (TVA) number Without VAT number
€290 + VAT at current rate
Hong Kong
Standard delivery 5-Day Express 10-Day Express
HK$4200 HK$8400 HK$6300
Please note that the Hong Kong prices include the representative’s sampling fee.


STANDARD: Normally ready in 3 weeks.

10 Day EXPRESS: 10 working days from receipt by Oxford Authentication Ltd

5 Day EXPRESS: 5 working days from receipt by Oxford Authentication Ltd

Travel expenses

Central London: Free of charge.

Outside the UK: Please contact us for travel costs. Minimum group size: 25 pieces or more.

On site sampling

You can bring your object to our laboratory for sampling while you wait by appointment only, sampling takes 30 mins, results will be in ready in 3 weeks as standard.

You can send items to us, but please call to discuss first.

NB. We cannot accept delivery/deliveries that have not been pre-arranged.

Oxford Authentication - Genuine bronze rhino

Genuine bronze rhino

Oxford Authentication - Bronze casting core photo

Bronze casting core

Authenticity testing