Slimline frame / steering head question

There is a cover which fits over the headstem which is attached using these two screws.

Trouble is the cover is not shown in the parts book, only the two screws.

I can photograph one of you're interested.

I have read somewhere that angular contact races were fitted  to some bikes. They would have been expensive though . 

Some (maybe all?) Commando models has ball bearings.  They should be fitted with a spacer tube (RGM sells one).  It's a mod I considered.  Use the search on this site.  There's been lots written about it.

As Bob writes, those screws are for a cover.  Not many bikes have one fitted. It seems to have been a fitting on the De Luxe model and when they stopped selling the covered-up bikes they used up the front head covers on the normal bikes.  The cover makes it more difficult to inspect, and squeezes the control cables.  Hardly anyone notices it, and nobody cares.  I keep mine because it's there, but I wouldn't go searching if it didn't have it.

The angular contact bearings were fitted as standard to some bikes. When I stripped my 1962 650ss for rebuilding, it was fitted with them, & as I aquired it from the first owner I know they had never been changed.