I've got a couple of those NOS Wico's and the leafs look the same. 
Nice!
It seems weird to me that mine has this almost stretched pyramid contact at the end of the leafs, whereas all the others I've seen including yours and Yotsuya's have the traditional round contacts
Nice pickup, brother!!

Thanks bro, the post on e-bay was for a Wico 2-4-8 way conversion kit, I don't think the poster knew what he was selling as he had no other arcade stuff for sale. Feels and looks great, the grommet is a little softer than the 8 way that I picked up, don't know if that's standard for 4 way or if grommets just vary from stick to stick, age, etc. Plan is to use this as the primary 4-way on my build, but put in a proper dedicated cab if I get to build #2.