Visual education; teachers' guide to Keysteon "600 set"
Keystone view company. [from old catalog]
text
pau
1922
monographic
Meadville, Pa
Keystone view company (incorporated) Educational dept.
[c1922]
eng
xiv, 634 p. ports. 21 cm.
Also available in digital form.
Visual education
Stereoscopic views
Lantern slides
LB1044 .K47 1922
http://hdl.loc.gov/loc.gdc/scd0001.00090674389
32036023
hdl:loc.gdc/scd0001.00090674389
DLC
830617
20190224101109.0
9692278
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(Revision 1.172 20230208)