You will need a Dremel, a 1/16 drill bit, a Coleman eccentric block as a guide, and a pump rod.
Comparison of the eccentric blocks:
The AGM eccentric block is the same size as a standard Coleman pump rod. Cut it to length. I decided to drill a 1/16 hole FIRST then cut the top notch. I then used the original eccentric block as a guide for the tip cleaner notch. In order to not go too deep I put the rod in the vise and ground out the notch. It was over in seconds
When you are done you will have this:
Two shots of a nice bright lantern.
Thanks to Curtludwig and scouterjan.
1919 Air-O from Jerry