Penny Arcade Spirometer, from Playland Amusement Park, Rye, New York. Probably from the 1930’s. From weschestergov.com
http://collections.westchestergov.com/cdm/singleitem/collection/ppl/id/1487/rec/3
Penny Arcade Spirometer, from Playland Amusement Park, Rye, New York. Probably from the 1930’s. From weschestergov.com
http://collections.westchestergov.com/cdm/singleitem/collection/ppl/id/1487/rec/3
Penny Arcade Spirometer, from Playland Amusement Park, Rye, New York. Probably from the 1930’s. From weschestergov.com
http://collections.westchestergov.com/cdm/singleitem/collection/ppl/id/2136/rec/1
Penny Arcade Spirometer at Playland Amusement Park, Rye, New York. Probably from the 1920’s. From westchester.gov.com
http://collections.westchestergov.com/cdm/singleitem/collection/ppl/id/746/rec/2
1920 Spirometry. Unknown type and brand of spirometer. From: University of Iowa Digital Library. http://digital.lib.uiowa.edu/cdm/singleitem/collection/ictcs/id/7549/rec/9