minox lx unusual identification

In my minox collection I have a black minox lx with a 'E' engraved in white, circled, above the MINOX LX name on the back of the camera. I have never seen this on any other lx and the heckmann book does not mentioned it.

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anyone got any ideas?

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thanks

Moses mentioned LX with promotional logo body, he cited Volkswagen LX

with VW logo.

<p> There are two possiblilities

<ol> <li> E circled stood for a logo of certain corporation-- as promotional gift

<li> Initial of previous owner </ol>

<p> In Frankfurt Borse, what company had a single 'E' as stock symbol ?