Check the listing for details. Vintage Swift Temperature Humidity Compensated Barometer 1950 - 60s. Condition: Used, Made in United States. Listed at 16.00 USD. This Vintage Swift Temperature Humidity Compensated Barometer from the 1950s to 1960s is a rare and collectible scientific instrument. Made in the United States by Swift Instruments, Inc of Boston, Mass., this barometer is designed to provide accurate readings of pressure, temperature, and humidity. Ideal for collectors interested in vintage scientific instruments or those looking to add a unique piece to their home or office decor. The compact size and retro design make it a standout piece for any enthusiast of science and technology from the mid-20th century. It can be dated as being made prior to 7-1-1963 as the Postal Zone 25 is used instead of a Zip Code. The unit measures approx. 9" X 4-1/2" X 2" and is made of a beige plastic.