I had a Merc 'S' recently but sold it on in a weak moment. Very graceful gun. I GAVE my old Tasco VFM611 2-6x20 to a rimfire club and never had the gall to ask for it back, its stuck on a Brno. I really wish I had kept it. You must have one of the only ones left in existence, I've never seen mention of one anywhere. The original airgunner's parallax-adjustable scope, lovely optics. Write the combo up for AGW maybe?