I just spoke with a customer who had the number 45301 stamped on his Truth Awning Window Operator.  After some research we found 5 operators that have that number stamped on it.  They are the Truth 11.10 Single Pull Awning Operator, Truth 11.12 Single Pull Awning Operator, Truth 11.30 Single Pull Awning Operator, Truth 11.16 Awning Operator, and the Truth 11.14 Double Pull Awning Operator.   The housings are all the same on these operators, its the arms that are different.  The Single Pull Awning Operators attached to your window at one point with a sash hook.  The Double Pull Awning Operator attaches to the window at 2 locations about 9″ apart.   The Truth 11.16 Awning Operator attaches to the window via a shoe that slides in a round track.  If you are still unsure, you might want to look at our Truth Awning Window Operators section of our website.

the above image is the Truth Single Pull Awning Operator, the housing could be stamped 45301

The above image is an example of the Double Pull Awning Operator. Notice how this operator attaches to the window at 2 points 9″ apart. The housing is stamped 45301 on the bottom.

the above image is the Truth Roto Awning Operator. Notice how the arms would attached to a slide track, via shoes. The housing is stamped 45301 on the bottom.