Riefler escapement

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1	[The following is a reproduction of an IBM product data sheet published probably in February 1939 on the Number 16 weight-driven master clock - motor wound.] Data Sheet I-MC-5 WEIGHT DRIVEN MASTER CLOCK—MOTOR WOUND Sp Add to Reading List Source URL: www-03.ibm.com Language: English - Date: 2005-06-23 07:43:53 Clocks Pendulum Escapement Movement Pendulum clock Riefler escapement Measurement Horology Time
2	[The following is a reproduction of an IBM product data sheet published after 1937 on the Number 35 weight-driven master clock - motor wound.] Data Sheet I-MC-2 WEIGHT DRIVEN MASTER CLOCK—MOTOR WOUND Specifications Add to Reading List Source URL: www-03.ibm.com Language: English - Date: 2005-06-23 07:43:54 Clocks Pendulum Escapement Movement Pendulum clock Riefler escapement Measurement Horology Time
3	nawccnewsletterOct2009.pub Add to Reading List Source URL: higherlogicdownload.s3.amazonaws.com Language: English - Date: 2011-07-23 00:08:33 Pendulum Escapement National Association of Watch and Clock Collectors Clock Bob Sigmund Riefler Movement Riefler escapement Horology Measurement Time