Any ideas what this is from?

[Scar0B2150]

I'm confused. The picture labels "hole" and "hollow", but it looks solid to me. Has it been filled? Or am I seeing things?

What are labeled as hole and hollow are just that. Nothing has been filled in or plugged.

Good info about the old time Taps, Spigots and Faucets can be found here.

Spigots and Taps

Spigots control the flow of liquid from a large container and have been in use since ancient Greeks and Romans installed them in their bathhouses. The Wine History Project’s collection includ…

winehistoryproject.org

Including a great patent scan from an 1890 "faucet" by John Sommer, Jr. From the John Sommer Faucet Company. showing a cutaway diagram of a wood "faucet".