This sculpture is an allegorical putto (a representation of a naked child, especially a cherub) representing Summer and made by sculptor August Weizenberg. The artist also produced other allegorical content such as "Lootus" ("Hope") or "Kevad" ("Spring").
"Sügis" ("Autumn") can be downloaded here.
This object is part of "Scan The World". Scan the World is a non-profit initiative introduced by MyMiniFactory, through which we are creating a digital archive of fully 3D printable sculptures, artworks and landmarks from across the globe for the public to access for free. Scan the World is an open source, community effort, if you have interesting items around you and would like to contribute, email firstname.lastname@example.org to find out how you can help.