looped iron weights

1800-1818 in Barcelona

Boxed set of rectangular looped iron weights for a pound of 12 ounces from the Castlereagh Collection for Barcelona (Spain).

On display

Science Museum: Mathematics: The Winton Gallery

If you are visiting to see this object, please contact us in advance to make sure that it will be on display.


Weighing & Measuring
Object Number:
brass, wood and complete
1/4 oz: 0.008 kg
1/2 oz: 0.017 kg
1 oz: 0.033 kg
2 oz: 0.067 kg
1/4 lb - 3 oz: 0.1 kg
1/2 lb - 6 oz: 0.2 kg
1lb - 12oz: 0.4 kg
spanish cup weight
Board of Trade (Castlereagh Collection)

Cite this page


We encourage the use and reuse of our collection data.

Data in the title, made, maker and details fields are released under Creative Commons Zero

Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data


Download catalogue entry as json

View manifest in IIIF viewer

Add to Animal Crossing Art Generator

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.