Monark Rocket? Bike Identification

[Traci Sparrow]

Recently acquired this bicycle and am trying to identify it. I'm not sure where to locate a serial number if there is one. I've been unable to find one exactly like this one. I especially can't find one that has the rocket chain guard. Any help would be greatly appreciated!

 

[Crassly]

Frame design looks correct for Monark, but the chain ring doesn't appear to be original.

 

[Jpromo]

It's a child's bike. Those often look very different from their 26" counterparts. There aren't as many of them around so they're hard to find reference photos. Probably early-mid 50s if the rear hub is original.