A few notes from skimming my manual...
DT = Dual Traction[4wd]
ID plate, as you found, is on the left side tranny.
Serial number is on right side tranny, near top
Engine serial number is on right side engine near top front
Engine is 19hp, 0.927l 3-cyl
PTO is 16hp
Ag tire size is 12.4-16 rear, 6-12 front
She is 106" long, 53" wide, and 75" tall with exhaust upright(I turned mine down flat).
She weighs 1565lbs
In top gear high range, you can go 11.62mph!
2600rpm on the engine gives full 540rpm on PTO
The engine only holds 3.3qts of 10-30w oil. Tranny/hydraulic is a whopping 19qts.
Thew red knob at the bottom right of dash kills it. The black knob at the bottom left is a compression release