This sign assembly for the Missouri 210-Missouri 269 interchange on northbound Missouri 269 shows that the markers for both routes use the rectangular "wide" style of sign. But different fonts are used, making the 210 seem bigger than the 269. The marker for Missouri 269 uses FWHA Series B, which is the usual standard in Missouri for three-digit state routes. The other marker is probably using Series C, possible because the digit 1 is much narrower than the others.
This photo was taken on northbound Missouri 269 in September 2008.