A drawing by A.G. Hill, as printed on page 137 of the 1905 book (the date means it is in public domain now) The Art of Organ-Building, Vol. I, by George Ashdown Audsley. Traced by potrace 1.12 for a lower resolution than the original, which results in a smaller file but less legible letters and less detail.
Organ Case in the Cathedral of Tarragona free icon was designed by AdamStanislav for icons Png and presented to its users.
AdamStanislav
12/14/2017