Two free downloadable candidates from the Library of Congress below.
(Not exactly "pull down" maps but certainly similar...)

The comprehensive series, historical-geographical maps of the United States / Chicago, Ill. : Modern School Supply Co., [1919]
48 maps : col. ; 65 x 106 cm
Bibliographic info: http://lccn.loc.gov/2009581137
Digital images:       http://www.loc.gov/item/2009581137/

Robertson's geographic-historical series illustrating the history of America and the United States : from 1492 to the present time.
Chicago : R.O. Evans and Co., c1898
Bibliographic info:  http://lccn.loc.gov/2009582180
Digital images:        http://www.loc.gov/item/2009582180/

Ed Redmond,
Geography and Map Division
Library of Congress

From: Maps-L: Discussion Forum for Maps, Air Photo, Map Librarianship, GIS, etc. [mailto:[log in to unmask]] On Behalf Of Angela R Cope
Sent: Friday, November 07, 2014 1:36 PM
To: [log in to unmask]
Subject: Pull-down schoolroom world map

________________________________
From: Reves, Donovan <[log in to unmask]<mailto:[log in to unmask]>>
Sent: Friday, November 7, 2014 12:18 PM
To: Angela R Cope
Subject: Question for maps-l - thanks, Angie!

Greetings,

I wonder if anyone might be able to recommend a likely source for a vintage pull-down schoolroom world map. . . or if anyone out there might actually have something like that on hand, for sale or surplus.

Thanks in advance!

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