Brass Typewriter Spool Covers Part 2

The reason for the brass spool covers is the original Remington design.  In the diagram from the Operating Manual below you can see that spool covers, numbers 6 and 26, are elegant.  I want to make covers that are similar, but in brass.

Each spool has a 1/4" post in the middle that the knob of the spool cover fits.

There's a good picture of what theNoiseless 7 looks like at this link: http://site.xavier.edu/polt/typewriters/remingtonnoiseless7.jpg

I think you would agree the original spool covers look good.

I'm guessing that the 1/2" by 1/2" small brass knobs from Lee Valley will fit if I drill them to 1/4", but it could be that they are smaller in diameter at the waist.  In that case I have a backup plan.  With 9/32nd brass tubing ( internal diameter 1/4" ), and washers drilled out to fit the tube, I can make up knobs to fit from scratch.

Part 1 Part 3 Part 4