Appareils portatifs de Duval, jeune, pour bains et douches de vapeur / [Duval].
A short French trade prospectus issued about 1840 in Paris by Duval le jeune, showing his portable apparatus for steam baths and showers to physicians, bath-house keepers and private buyers. Two hand-coloured plates lay out numbered copper boilers on louvred stands, curving hose arms, valves, braided flexible tubing and tapered nozzles against bare paper, giving designers isolated apparatus silhouettes and a soft copper-and-cream palette.
![Picture 1 of 2 from Appareils portatifs de Duval, jeune, pour bains et douches de vapeur / [Duval]. (1840), leaf 3](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b31957596-3-1.webp)
![Picture 2 of 2 from Appareils portatifs de Duval, jeune, pour bains et douches de vapeur / [Duval]. (1840), leaf 5](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b31957596-5-1.webp)