Full set of 9 accessories for Singer back-clamp fitting machine in Singer green cardboard box.
These rare attachments are quite good condithion. Please note that these will not fit the usual side-clamping machines, the mounting screw faces the back of the machine, not the side.
This fitting was exclusively used on early model 66k machines, before about 1910 (the 66-1). All other models and indeed later 66k machines all have side clamping feet.
The box is ok but is a little tatty.