The 1920-1922 cars used 24" Kelsey rims and came with 32"x4" tires (rims were common with Special and Big Sixes), although they also offered a clencher type rim for a 815x105mm tire but I've never come across one.
The 1923 cars used two different types of 23" rims - for wheels with 8 hub bolts (p/n 120021) and for wheels with 12 hub bolts (p/n 120538). They originally came with 30"x3-1/2" tires.
The 1924 cars (which I believe yours is) came with either 23" rims with 12 hub bolts (p/n 120538) for the high pressure tires 30"x3-1/2" tires or a 21" wheel/rim with the balloon tires.