The soldier figurine found by thedukeofdelaware is wearing shoulder epaulettes, and the Ebay figurine isn't. Also, the Ebay figurine has a blanketroll atop his backpack, and thedukeofdelaware's figurine doesn't. Nonetheless, thanks are due to Deftone for his efforts at finding a failrly close soldier figurine.
By the way I think the presence of shoulder epaulettes is more indicative of a 1700s/1800s soldier than a 20th Century soldier. That of course doesn't mean the figurine was made in the 1700s/1800s... just that it is a uniform from that time-period.