Hudson's with 6 pull down shades and a tool box on the running board.

Here's some auction photos of this (ex-Harrah) Hudson: https://rmsothebys.com/en/auctions/af20/auburn-fall/lots/l0105-1923-hudson-sedan/887420

Butler says in his book that 1923 Super-Sixes "can not be definitely identified by serial numbers. But this was the last year for the intermixed numbering system introduced for the 1921-1923 period with a range of numbers from 100000 to 499999".

The serial number for this car is 314432 so it falls in that range, i.e. it was made in the 1921-1923 period. The drum-style headlamps were introduced in February 1922, narrowing it down to 1922-1923.

Bumpers weren't yet standard equipment at that time, and the wood bumpers could be aftermarket. I think I've found a match - the ad below says "1920s Hickory Wood Accessory Bumper. Built in 1922 and 1923 by the Hays Mgf. Co. of Missouri." The Hudson's bumpers look exactly the same to me as the bumper in the ad, with the little metal tag and all. http://www.2040-parts.com/1920s-hickory-wood-accessory-bumper-ford-speedster-race-car-brass-i1767716/

I checked the YouTube film again, and at 3:39 you can see the edge of the door; black or blue with bits of green paint around the edge. So I assume it was repainted green. (The brochures at hudsonterraplane.com say 1923 sedans were dark blue with black chassis, and that 1922 closed cars were valentine blue with black chassis and upper body). But it's only painted on the outside, so I doubt that the interior was affected. IIRC, the person in the film said the top had been redone, but don't you think the rest of the interior seems original? (Maybe not exactly as it was delivered from the factory, but at least not altered or renovated in recent decades.)

The front side pockets, right below the windows, are visible in this photo. If you look closely, there seems to be another pair of pockets below them - do the lower ones match yours? In that case, maybe they were standard equipment and the top ones were optional.

The metal vase thingy is weird, I can't find anything like it on google. The flower vases all have a deep, very narrow, glass insert that is placed in a ring-shaped metal fixture. This thingy isn't nearly as deep, and it's hardly the metal fixture for a vase because it doesn't have an open bottom; instead it looks like it's screwed onto a threaded bracket (4:25 in the film). The thingy itself has a line near the top, that looks like it might come apart, and the part "lid" is funnel-shaped inside (shows in the photo above). My guess is that it's an ashtray, that it can be screwed off from the bracket and the lid removed to empty it. The funnel shaped lid ought to help the ash stay in the ashtray when you hit a bump in the road.

So far I haven't found photos of other original Hudsons of the same age, but I'll keep looking. The 1922 Hudson sedan in this auction has a convincing-looking interior but I guess it's too well-preserved to be original? Note the door pull on the back door, and the ash trays. (Good luck finding the oddly shaped ash tray, I haven't seen it on other pics of contemporary Hudson dashes so I guess that too was aftermarket.)

Here's the back seat of a 7-passenger sedan, from a 1922 brochure:

And a 5-passenger sedan in a 1923 brochure:

It does look like three blinds were standard, as you say! No door pulls visible, but given their placement in the auction's 1922 Hudson, they would be hidden by the pillar and front seat in these pics.

I found the brochures at http://hudsonterraplane.com/tech/tech_index.htm , where I also downloaded Alex Burr's "General Information Handbook". He provides exact number ranges for serial numbers in the 1921-1923 period, which identify the ex-Harrah Hudson as a 1923 7-passenger sedan.

Could it be that yours is a 5-passenger sedan, and that there were differences between the two models? Butler only mentions that when the 5-passenger sedan was introduced in 1923, "the front seat was made larger, the rear seat was moved forward, and both seats were more comfortable."