60's Rambler?

Hi Everybody! I have a Rambler that I picked up. It appears to be similar to a Rambler 500 but has curved front forks and a metal head badge. The chainguard is what originally made me think it was a 500. The serial number is on the rear left drop out and is a bit of a anomaly as well. It is 269812, no letters. 28" rims and painted fenders. Any info to help me learn what this is would be great.
It wasn't rideable when I bought it, both rims had a flat spot(like from being dropped), and there were a few spokes broken on the back. There is no name or anything printed on the rear hub,it does have an oil port on it. It has a knurled coaster brake arm without anything printed on it either. Thanks.