Not 1953. Did you get a picture of your H80232 serial? Sometimes the font and the way and where it was stamped mean more than the number itself. I am not that well informed, but some of the people around here will really surprise you with how much they know.
Based on my admittedly limited knowledge, and assuming it is really a Schwinn, and I think it is but I can't be 100% sure, here is what I see:
Your rear forks on the frame look like prewar Schwinn. They do not look like 1953 Schwinn. Postwar, those would have been dropout style on a Schwinn, no question about that. Also I think the number would have been stamped on the left dropout in 1953, but someone else will need to confirm that.
H" and 5 digits fits for a late 1941 Schwinn if stamped under the bottom bracket. My 1941 (I am calling it a 1941 due to the crank stamping) Schwinn boys straightbar has "F71444". That really should be a 1940 serial number I think, but Schwinn did supposedly stamp the bottom brackets before they welded the frames. H and 5 digits should be one of the last things stamped before Schwinn shut down ballooner production for the war.... I think. Someone please correct me if that's wrong.
What I am unsure about is what makes a frame different (if anything) at the "DX" price level if it is a girls frame. On a boy's frame it is obvious. The middle tube is curved on a most DX frames.
I think your frame and fork came together originally and are prewar Schwinn, probably 1941. As for everything else.....
Nobody typically got ballooner bikes with a mattress type seat before the war. I mean you COULD have, they existed, but it would have been an uncommon request. In any event the one in the pictures is decades newer, probably 60s or 70s.
The fenders are not prewar Schwinn, probably not Schwinn at all, and would not have been chrome. You could make them look less out of place with paint and maybe some different stays if you wanted to, but they are not that much like the originals.
The back wheel has a "drop center" rim similar to what would have come on a cheaper Schwinn in 1941, I think(?), but the Bendix coaster hub is postwar. The front wheel looks mismatched and newer.
The pedals, crank, and chainwheel look to be Schwinn. They are probably from the early 60s if they came together from the same bike. I suspect your bike probably had a skiptooth chainwheel and a Morrow or New Departure rear hub originally.
Your chainguard is identical to a Western Flyer one I bought at Western Auto in 1976 for my 1941. People here tell me the actual maker is Wald. I painted it years later and filled in the extra holes to make it look less universal, but when new it looked exactly like yours.
Here's my 1941, also with some wrong parts (including that Western Flyer chainguard).
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