System.Data.SqlClient 4.3.0 Source code mapping

Not able to find the archived source code mapped to nuget package 4.3.0

e.g. System.IO.Pipelines 4.5.2
contains a code/Tag "02b11eeee1fbc5f3ef43a1452fe07efd25fa1715" that links the CoreFx repository
So i am able to verify it using following path:
https://www.nuget.org/packages/System.IO.Pipelines/4.5.2

https://github.com/dotnet/corefx/blob/02b11eeee1fbc5f3ef43a1452fe07efd25fa1715/src/System.IO.Pipelines/dir.props

But as there is no tag present for Microsoft.Data.SqlClient 4.3.0
https://www.nuget.org/packages/System.Data.SqlClient/4.3.0

How to find the tag for the above package?