I was hunting high and low for a synchronized binder bracket for my Pfaff 345 and finally found one more or less in front of my door. It is for the 145, 545, 1245 flat bed machines but actually fits for the cylinder bed 345 w/o problem. Only difference is that the original 345 bracket has a slanted panel towards the operator and this one has a flat panel but does not bother at all.
I bought it at www.rimgm.de for 88€ + shipping - I know Kwokhing also has them but I only needed this particul