If you can read Cantonese, please help me translate the first two characters on the sign below. I've been told the last two mean business/company. I'm thinking the first two might be a family name? This is a painting of Chinatown, Montreal c.1920, by John Y. Johnstone.

I only see Barry Keoghan, as Dominic in Banshees, when I look at this 1893 oil sketch by William Blair Bruce (Art Gallery of Hamilton)