Searching for Chanel balance 29B NF BSI

A quick learner says:
Here are pictures Chanel balance 29B. NF BSI 29? Long
Pivot housing lock shoe w .950?
T .532?
H 1 7/8?
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Bob from SWISCO responded:

The pivot shoe might be either our 15-167 or 15-179, depending on the dimensions. Double-check to see if either of these match. These shoes are often used with a S770-29 Channel Balance. Look it over and see if you think this matches your old balance; if so, you'd need a stamp option of 29B. 

15-167 : Pivot Lock Shoe
Pivot Lock Shoe
15-167
$2.53
VIEW >
S770-29 : 29
29" Series 770 Balance
S770-29
$12.31
VIEW >
15-179 : Pivot Lock Shoe, 9/16
Pivot Lock Shoe, 9/16" Thick
15-179
$2.60
VIEW >
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