Most of the bits top left are for a Perkins Hit and Miss engine
Long thin one just below the bucket is a Stuart Victoria bed casting, the smaller flywheel and cylinder casting just below it are probably from the same engine though they are used on several Stuart engines. Looks like Pulley and cylinder end cover in with the smaller items bottom right
upside down "tee" shaped casting nearest the middle paving joint is a Stuart beam outrigger bearing support.
Some traction engine read hubs in the bottom right group too.
Hope that helps and I'll let you know where to send my share of the higher price you get for them now they can be correctly listed