What does it mean to be from Russia Poland on a birthcertificate circa 1908?

Question:

What does it mean to be from Russia Poland on a birthcertificate circa 1908?

Specifically looking for regional information from that time period that might help me identify my husband's grandfather's heritage.

Additional Details

1 month ago
Ok, actually when I looked up his name on ellisislandrecords.org (if it was him ) it listed Russia Poland. But on the actual birth certificate it lists Russia as my husband's maternal great -grandparents birthplace.The names are Szwonckoski (Great Grandfather) and Mary Rejdel or Rijdel. The grandfather was born here in the US in Holyoke MA 1911.

Best Answer - Chosen by Asker: 1 month ago
Ok, actually when I looked up his name on ellisislandrecords.org (if it was him ) it listed Russia Poland. But on the actual birth certificate it lists Russia as my husband's maternal great -grandparents birthplace.The names are Szwonckoski (Great Grandfather) and Mary Rejdel or Rijdel. The grandfather was born here in the US in Holyoke MA 1911.