Frame Rust Near Steering Head

After taking the tank off, I noticed some frame rust where the tubes join the steering head.  It appears to be surface rust only, but I need to address this sooner rather than later. 

Being that the steering head bearings are also nearly half a century old, it's probably time to replace them.  The next project will therefore be refurbishing everything from the steering head down:  wheel, tire, tube, front brakes, fork rebuild, and eventually, headlight/instrument cluster.