The set which CycleArt has on eBay are a similar but different model... a bit lower in quality. Notice the way the return springs hook underneath the central yoke - a bit messy. And the Red lettering on the pivot bolts washers is another tip off.

The original Model 61 always had blue lettering as far as I recall. And, they do often turn up on eBay - and for reasonable cost. I've bought a few over the years.

Good Luck!
Bob