Crank opener

A home owner from Chuluota FL says:
January 26, 2022
One section of arm has the number 2 stamped on it and the most extended part of arm has the number 78 punched on it.m
Inside the housing is a Pat No. D-198 202
The arm extends 4 1/2 inches
The housing is 6" from top to bottom
It is dark in color
I have ordered a crank from you before
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Emily from SWISCO responded:
January 27, 2022

Hello!

Take a look at our 39-056, 39-084 and 39-432. Review the dimensions for each and compare them to yours to see if one of these matches up to your original operator. 
Crossly Window Crank
Crossly Window Crank
39-056
$21.41
#10 x 1/2" Pan Head Phillips Screw
#10 x 1/2" Pan Head Phillips Screw
33-081
$0.18
3/8" Shoulder Screw, 5/16"-18 Thread
3/8" Shoulder Screw, 5/16"-18 Thread
33-067
$1.10
Shoulder Bolt Bushing
Shoulder Bolt Bushing
33-207
$0.85
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