Probably, until we get a body of these wartime gloves, Rawlings, Wilsons,
Goldsmiths, etc. and can compare some commonalities we may not know
what numbers like these mean.
On the web of my USA Doak the Licensed Patent numbers are stamped:1524295 and 2221204. Which may have been patents for features on the glove rather than for the glove itself.
These two numbers do not match up with yours. There is nothing on the back side of the wrist strap on this glove. In fact no other numbers of this
size anywhere else on the glove.
But, interesting topic.