Is This The Orinal Oil Filler Tube

[jg61hawk]

My 1929 has the filler tube pictured here. An older gentleman in town recently purchased a 1929 and his oil fill tube is much smaller with a cap that has two spring like prongs hanging down that push into the tube. He is having some issues with oil coming up the tube and out the cap.

I showed him mine and they are very different. He bought a cap from a vendor but it too has the two spring prongs hanging down.

I see Snyder's sells part # A-6763-ACC which they say is similar in size to the 1932-1934 models. Should he buy that?