An illustration of a young boy closing a door.

Boy Closing Door

An illustration of a young boy closing a door.

An illustration of a boy opening a window.

Boy Opening Window

An illustration of a boy opening a window.

An open window decorated with drapes and pillows.

Drapes

An open window decorated with drapes and pillows.

A young girl reaching for the handle of a door.

Girl Opening Door

A young girl reaching for the handle of a door.

An illustration of a girl opening a door and holding a tea kettle.

Girl Opening Door & Holding Tea Kettle

An illustration of a girl opening a door and holding a tea kettle.

"The helmet without bars, with the beaver open, standing directly fronting the spectator, denotes a knight." -Hall, 1862

Open Helmet Direct

"The helmet without bars, with the beaver open, standing directly fronting the spectator, denotes a…

"An open hearth furnace has a large bed (E) lined with fire-brick and sand (H) on which the charge is placed. Gas is used as fuel and is heated before entering the furnace by pass-heated gas is passed into the furnace through a pipe (a), while through another flue (b) aur enters which has been similarly heated...hot, gaseous product escapes through checkerworks (C,D)..." -Brownlee 1907

Open Hearth Furnace

"An open hearth furnace has a large bed (E) lined with fire-brick and sand (H) on which the charge is…

An open spittoon sitting on the floor, near a table.

Open spittoon

An open spittoon sitting on the floor, near a table.

An illustration of a open single-hung sash window.

Open Single-hung Sash Window

An illustration of a open single-hung sash window.