Need Help Identifying Rare Vintage Pilot

[penlo]

Hello there! Can anyone help me identify this vintage Pilot? All I know is that it has a gold-plated stainless steel nib. This particular pen comes from an official Israeli retailer, and I obtained it from a trade. 

 

Besides that, not much is known. It's impossible to get info about this anywhere. I've been scouring every resource on the internet, including old Pilot advertisements and catalogs, and have found nothing except for a single eBay listing of this pen. Any help is much appreciated. Thank you!

[PithyProlix]

I have the same pen but with an F nib and was going to eventually ask the same thing. It has the same nib and feed design as the Cavalier.