Dear collective wisdom, A student at my institution is researching a work by Lola Álvarez Bravo and wanted to know what the circular objects are in the attached image (not the coins but the three slide carousel-looking things). More information about the work can be found here: http://ccp-emuseum.catnet.arizona.edu/view/objects/asitem/People@60/46/title-asc?t:state:flow=ca19bd30-e5b9-400e-ad78-739b7ca4b4f8. This article <https://journals.openedition.org/orda/2197?lang=en> (in Spanish) also refers to it vaguely as a money-making machine, but the student is wondering what exactly the object is. Anyone have any ideas? [image: El sueno de los pobres.png] Thanks in advance for any leads, Andrew -- *Andrew Wang* [log in to unmask] *any pronouns <https://www.mypronouns.org/what-and-why> * ~~~~~~~~~~~~~~~~~~~~~~ Mail submissions to [log in to unmask] For information about joining ARLIS/NA see: http://www.arlisna.org/membership/join-arlisna Send administrative matters (file requests, subscription requests, etc) to [log in to unmask] ARLIS-L Archives and subscription maintenance: http://lsv.arlisna.org Questions may be addressed to list owner (Judy Dyki) at: [log in to unmask] ~~~~~~~~~~~~~~~~~~~~~~