Make 1233
Stylish and functional (might be fun to make a laptop version) Popular Science 1936 –

To facilitate taking notes in the rain, a German newspaper reporter has equipped his raincoat with a window of transparent material. By holding his pencil and notebook in front of him, directly under the improvised window, he is able to see what he is writing, and jot down his impressions regardless of the stormy weather. The inventor is seen demonstrating the practical usefulness of his innovation.

See through window raincoat – Link.