You can use almost all of these on your low shank singer. It's only the shir and under braider (the two funny shapped ones that attach to the bed) that will only fit a long bobbin machine- so that would be 27/28 or 127/128.
For the others, I've got over 12 different ones. Based on the open two and plate with the round cutout, this is probalby the "generic" set that fit some of the less common Mfg machines. The feet may work on a few different machines as the open two (no needle hole) allows for more variation in needle position.
I'd guess you have a set that would fit the New Royal made machines. If you have some machines that take top clamp, put the tucker on and see if the needle lines up with the needle hole. Make sure to keep the tucker square with the machine though.