Rainfall-type shower head (Stockbridge, Edinburgh EH3)

Metal rainfall style shower head for a fixed overhead shower fitting. I assume it's a standard fitting - I just unscrewed it by hand to replace it. A ball joint at the top lets you set the head to your preferred angle.

Was in use till yesterday and working fine. I've given it a clean and rinse. See photos for dimensions! Quite heavy - about 850g.
Collection Times
Most times okay - I can leave out for collection