I believe #6 is a seam guide. There should be a screw that attachs through the slot into one of the small holes to the right of your needle. You slide the guide until it's the proper distance from the needle for the seam you are sewing.
#5 is a rolled hem guide. You can check You Tube for videos showing all the presser feet in action.
#4 may be a foot to attach buttons. It's a bit similar to the two I have.
#2 is similar to the "general purpose foot" that came with my early 70s, also green, Singer Fashion Mate 252.
#1 may be a foot for straight stitch only; it does not seem to have an opening wide enough for a zig-zag stitch.
Do you have the manual that would have come with the machine? It would describe the feet and their purpose.
Last edited by Caroline94535; 04-04-2015 at 06:24 PM.