need roto operator

A home owner from queens ny says:
I have the roto base #G2OSCP01 #39-248looks it would work I also need the operator to go with the base mine is broken I just cant find it thank you.
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Tom from SWISCO responded:
I'm not sure what you need. The 39-248 base is often used with the 39-092 and 39-091 operators, but that's no guarantee it's a match for yours. It's impossible to say for sure without an old one to use as a reference. Look these two parts over and see what you think.
39-091 : ROTO Casement Operator
ROTO Casement Operator
39-092 : ROTO Casement Operator
ROTO Casement Operator
39-248 : Roto Operator Base
Roto Operator Base
Anatomy of a casement window
Anatomy of a casement window
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