Helllo, Celia & Jorose,
I felt that it could be either Couch or Coach & as New North Street lies right in the middle of the Furniture , Chair & Couch making district I opted for Couch. My own paternal family had one brother a Master Cabinet Maker & another brother a Master Chair & Couch Maker in the same Shoreditch area, employing several men so I felt that Joshua Wink could have been a Couch Maker's Labourer. In all census refs, for the Chair & Couch maker the occupation was always Couch, the name at the time for what we usually call Sofa or Settee.
This area is still a district full of these occupations.
But then again if it turns out to be Coach, I will have opted for the wrong one. Hope I haven't confused you too much.
If you obtain the birth cert for Joshua, June ¼ 1841, this should clear up this point, the same for the death cert for Joshua snr.
Meliora