I don't see any markings

A home owner from Fresno, CA says:
July 3, 2023
We are buying a house that has about a half a dozen broken casement operators. Can you help me identify this type?
Thumbnail of the uploaded file named 20230629_165549.jpg
Thumbnail of the uploaded file named 20230629_165905.jpg
Profile picture of Lauren
Lauren from SWISCO responded:
July 5, 2023

Hello, thank you for posting,

Your operator resembles an older version of the 39-091 and 39-092 operators. Review the overall dimensions to confirm a good fit. For a new handle, take a look at the 39-230 or 39-224 fold-down style. Please note that the link arm that connects the operator to the window sash is discontinued and obsolete. You will need to reuse this arm for the window to function.

Let us know if you have any additional questions. 
ROTO Casement Operator
ROTO Casement Operator
39-091
$67.93
ROTO Casement Operator
ROTO Casement Operator
39-092
$67.93
Fold-down Crank Handle, 5/16" Hex
Fold-down Crank Handle, 5/16" Hex
39-224
$24.35
White Handle w/ Set Screw, 5/16" Hex
White Handle w/ Set Screw, 5/16" Hex
39-230
$16.45
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
How to identify casement and awning operators
How to identify casement and awning operators
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.