It has a pump handle which we also have.
If I understand correctly, the 490 is electric, the 491 pumps by compressed air and the 492 is hand pumped with a lever handle.
Just my opinion, but I think the decal is worth saving. Great survivor.
I just sent a similar PM:
"A 490 has a different top, a 491 is air operated (no pump handle), and a 492 is operated with a pump handle on the side
I definitely would not restore it. The trend is leaving pumps in their original as-is state. I actually agree and think that pump looks very cool with the original sticker on the side and would never restore that pump. "