The model department of the United States Patent Office in Washington is illuminated here and there with the original models...
Period photos
The model department of the United States Patent Office in Washington is illuminated here and there with the original models...
The model department of the United States Patent Office in Washington is illuminated here and there with the original models...
The model department of the United States Patent Office in Washington is illuminated here and there with the original models...
The model department of the United States Patent Office in Washington is illuminated here and there with the original models...
