how to unwrap this shape

I am working on a trident-like model with some ornamentation on the handle. Mainly this is an exercise in texturing. However, I have run into a problem unwrapping this shape. It seems to me that it would make since if I unwrapped from the edges shown below, but it doesn’t work. I need the model to be stretched flat. Thank you for your time.

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In the Front view, try Unwrap / Cylinder from view.

Thanks, but no such luck.