Sizing information
| Overall size (inc frame) | x cm ( x in) |
| Depth | cm (in) |
| Artwork | x cm ( x in) |
| Border (mount) |
cm
top/bottom
(in)
cm left/right (in) |
| The paper size of our wall art shipped from the US is sized to the nearest inch. | |
Our prints
We use a 200gsm fine art paper and premium branded inks to create the perfect reproduction.
Our expertise and use of high-quality materials means that our print colours are independently verified to last between 100 and 200 years.
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Manufactured in the UK, the US and the EU
All products are created to order in our print factories around the globe, and we are the trusted printing partner of many high profile and respected art galleries and museums.
We are proud to have produced over 1 million prints for hundreds of thousands of customers.
Delivery & returns
We print everything to order so delivery times may vary but all unframed prints are despatched within 1–3 days.
Delivery to the UK, EU & US is free when you spend £75. Otherwise, delivery to the UK costs £5 for an unframed print of any size.
We will happily replace your order if everything isn’t 100% perfect.
Product images of Roundel for use in optical experiments
Product details Roundel for use in optical experiments
Roundel for use in optical experiments
Plate 9 figure 2 from the paper "New experiments on the ocular spectra of light and colours", by Robert Waring Darwin, Philosophical Transactions of the Royal Society, vol.76 (1786), pp.313-348. Roundel intended for use in exploring colour perception. In the written experiment circular pieces of silk are overlaid in the sequence blue (outer), yellow, pink, green and indigo (inner) with a central spot. "look steadily for a minute on this central spot, and then closing your eyes, and applying your hand at about an inch distance before them...you will see the most beautiful circles of colours that imagination can conceive, which are most resembled by the colours occasioned by pouring a drop or two of oil on a still lake on a bright day."
Original: watercolour on paper. 1785
- Image ref: RS-9947
- The Royal Society
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