All microfilms of the room are alphabetically ordered by town. One exception has been made for Colmar and Mulhouse, which are the two biggest towns for the high-Alsace and which share a common shelve for all years until 1892. Upside every shelve, a little shield tells you what towns and what years it covered. After finding the researched town and year, you must take a look at the color of the box.
Green boxes are all empty and return to others boxes.
The abreviations used on each boxes describe then the exactly contents of the film.