Is this a douche device?

Http://www.flickr.com/photos/slapayoda/136578480/

On the right of this picture of a Spanish bathroom from the early 20th century, there is (below) a bidet (in the French sense), and above it a device with tubing. Is this a douche irrigator?

I have seen a similar device that is both used for douching and enemas. There isn't a nozzle attached in this photo. Those glass irrigators occasionally appear on EBAY or on Worthpoint as a prior sale. I'm assuming they were likely available last century and perhaps European.