Where: I don't know - hopefully you do! [UPDATE: Several readers have identified this as Wellington Street, looking up the slope from the junction with D'Aguilar Street towards the junction with Wyndham Street.]
The road slopes gently uphill, and from the shadows we're looking east. At the end there's a broad flight of steps to the right, and it looks as though the road narrows to an alley on the left.
Who: There are a couple of pairs of sedan chair bearers waiting for customers:
Am I right to say that means we're on Hong Kong island? I think of Kowloon only using rickshaws, as the streets there aren't as hilly.
It's busier than I'd expect for a dead-end street, so maybe there's a road junction up near the steps?
What: Here's a closer view of the top of the steps:
On the left there's a large sign with writing in Chinese and English. Is the building at the top of the steps some sort of institution? Maybe a school or a hospital? The man on the right of the photo looks smartly dressed in a white suit.
We can also see the names of several businesses along the street. Canada Shoes is the big name on the left, and further along on the right are a couple of tailors' shops, Man Hing, and Yee Sing.
When: This comes from the same set as the photos of Altadena  and the rat bin , taken in the 1930s.
If you recognise the street, or can add any clues, please let us know in the comments below.