HI @Anonymous,
I didn't get answers from you so I have made some assumptions.
First I drew two horiz. (parallel lines 5 mm apart) and made them 327 mm long
Then, from the right hand side I offset 32 mm to the left.I trimmed the horizontal lines to this length. I also offset the right hand vertical line 5mm to the left

From the rt hand end of the horizontal lines I drew lines at 120 degress and then did a fillet with radius of 4mm for the top. I offset the arc down 5mm and trimmed the lines.

Next, I filleted the top angled line with the rt hand vertical line with a radius of 12 (and then again at 5mm

This should give you the basic shape.

Please select the Accept as Solution button if my post solves your issue or answers your question.
John Vellek
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