New, unused genuine Nikon shutter release button & 2 made in Japan ones, set of 3

Please read the profile and description before negotiating the price.

This is a set of Nikon release buttons (shutter buttons).
One is a genuine Nikon product, and the other two are made in Japan.
The ones made in Japan have a slightly larger diameter and I recall they interfered slightly during trial fitting. Please consider them as a bonus.
I purchased these for my film camera (New FM2) a long time ago, but I sold the camera without ever using them.
I believe the genuine product is a very rare item.
It will be difficult to obtain in the future.
What do you think?

FM New FM2 Titanium TITAN FM3 FE

Price Reduction
3999→3850(3/29)→3700(3/30)→3550(3/31)
→3400(4/1)→3300(4/2)→3200(4/4)
→3100(4/5)→3000(4/6)→2900(4/7)
→2800(4/8)→2700(4/9)