Ennalyt 28mm f3.5 close focus

[Xpres]

My revived Ennalyt is about the closest focusing 28 I have, giving the Vivitar f2 a run for it's money and even the Flek, getting down to 18cm.
Would it be reasonable to guess the design is similar to a flektogon?
There are very few good words said about this lens that I can find which puzzles me. It can be had for almost nothing and is vey easy to use - the aperture for example has no clicks and can be easily moved after focusing with one finger - like the focus knob on a rangefinder. Well real snaps to come but heres a couple..

These are wide open

The lens is resting on the magazine