Kohler #6817-A-SN IV Georges Brass towel ring in Polished Brass/Polished Nickel finish.  NOS, missing parts.  See parts diagram in last picture for reference of missing parts:

3 - #81457 Anchor

3 - #42139 Screw

1 - #36700 Bracket

1 - #36729 Washer

1 - #53448 Screw