Again... the fenders are off-the-shelf aftermarket universal fit pieces. Dealers stocked them. I bought out dealers years ago that had piles and piles of these. Usually painted black and sleeved in white packing paper. Everybody had them. They were very, very, very commonly used fenders for wartime refurbs. As I stated earlier. This is a WW2 refurbish bicycle.
Again, as I said earlier... the wheels are not "Middleweight" (which was a different size and not invented until the 1950s)... the wheels are Victory bicycle wheels. "Victory" bicycles were wartime lightweight government specification. Yes, of course they were saving rubber... it was World War Two... and the whole reason for Victory wheels and Victory bicycles was to save materials which were precious during the war.
Anyone old enough or around the bicycle industry in the USA for enough years can easily identify what you have. It is not "making up stories" to refer to "war mongrel" refurbished bicycles. There were once thousand and thousands of them. But one would have to simply know this.