I'm sure you are correct. I'm starting to think this may be an 1822 and the decal is rubbed off from getting too close to objects. What is also puzzling is that they say this is a 1984 model and the oldest Grasshopper I have seen is a 1985! There is also a Woods 1850 they say is from the mid 90s with a snow blower but no deck. I know grasshopper produced zero turn mowers for the Woods Corp but cant find any real specs on that either. Next step is to call Grasshopper and ask them. Thanks!