A Jordan TOF products, formerly known as RM Jordan, ''Time of Flight (TOF) lens stack and flight tube'', part number C-677. The x/y deflectors are used for ion steering in mass spectrometry and the grids can be used for acceleration. 

From Jordan TOF Products website:

''An assembly of grids, steering plates and lens elements mounted on a flange for insertion into the user's experiment. These are placed in the optimum position to extract, accelerate and focus ions through the flight tube and onto the detector.''

All ion optics (spot welded grids, deflectors) are in immaculate functional condition. The knife edges on both 6'' ConFlat (CF) flanges are in great condition without dings. Continuity between the air-side and the vacuum side electronic feedthroughs (each one SHV-5 kV respectively) has been checked and is less than 1 ohm for all feedthroughs. Please see photos for all of these tests.  

Note that all the SHV connector labels are professionally etched into the flange for ease of identification. The feedthrough known as 'A1' has a slightly dinged shield rim although the center pin and continuity are unaffected. In this particular configuration, A1 is unused and so it would be easy for a machinist to swap this out in the worst case scenario, although it's quite likely it can be used 'as-is'.

I have reached my photo limit for this listing however do not hesitate to contact for more detailed photos and information as befits your application.