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Schlesinger Library records to see if it is listed, and then locating it in SL Tracker.
SL Tracker has a separate "RA view" that you need to use to find out where the boxes listed in the finding aid above live. Some tips about searching: The RG# of the Library records is XVIII, and the series is "02.1".
If your collection is quite new, you should check with Kathy Jacob to see if she has any other information in her personal file on the collection.
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