luisps, you get the point. The owner, one Mr. Jaume Muntaner always lists the car in callyes and meetups as a 1923, but I am aware that a spanish website about license plates assigns this plate number to January 1924. It would make sense I guess for the car to have been built in late 1923 (the year that the Rugby marque started operating, according to WP), and then for it to have taken a while to arrive in Spain by ship so by the time it was registered it was already early 1924. Congratulations!
I will post the unedited photograph (showing the license plate) later today.
Any additional info about the car (model denomination, engine...) will be welcome, I have none.