Maybe if you had an example of one of the first or last few models made, or a serial number that confirmed a provenance of extreme interest, but generally speaking serial numbers that might otherwise might be cool for the owner don't increase a machine's value. 

Well, there were actually less than 350,000 of the 2Y models produced. And less than 300,000 of the 3Y. I'm not sure how many of the third generation Skyriter models were made because things got a little weird with the Skyriter name after Smith-Corona bought British Typewriters and some of the machines were branded as Empire instead for a short while.

Something else worth considering: Your Skyriter, despite its relatively low serial number, isn't even a first production year model. I think for it to have any extra value at all it would have to at least be a 1949 model.