Re: rebuilding compass
Yes, a Syringe
Fill a syringe with just enough oil, then rotate the compass until the fill hole is on top, shake or tap it a little to release any trapped bubble, remove the tap screw, fill with oil from the syringe, cap it, shake or tap it, if there is any bubbles repeat but, you'll probably release them the first time.
1955 Blanchard 51 Custom ( I got a woody )
On the 8th day God created sailors and evil stood at attention