IMG 9427-001-Nazalia Ghostsign

At the junction of Popham Street and the Essex Road. Nazalia was a cure-all made by a company based in Boston, Massachusetts, from 1893 until the early 1930s. Sign reads:
NAZALIA
Day & Night Cure for
Catarrh
& Colds in the Head
Prevents Influenza
Certain, Simple & Inexpensive

For a long time it was thought that this sign advertised a similar product called X-Zalia, but recent research has correctly identified it as Nazalia.
Source: ghostsigns.co.uk/2024/07/x-doesnt-mark-the-spot-revisiting-an-islington-ghost-sign/?ref=bl.ag