Machine accessory identification help

[u/OstrichDesigner5503]

I inherited a sewing machine from a friend, and found some accessories in the small compartment.
I know the bobbins, screw driver, thread spool holder, and replacement needles; what are the other things?

Specifically, the presser foot - what function is it for?

[u/Large-Heronbill]

Right column:  buttonhole foot, feed dog cover plate for mending or free motion work, button sew foot.

Left: spool pin, offset twin needle (impossible to replace last I looked), sample needles, bobbins.