Help with marks on modernist Mexican necklace

[tracer12]

Very nice modernist necklace, cannot find the mark. I have shown the mark and then drew it on the photo with the necklace. Also has 925, Hencho___ (does not appear to say en Mexico). Very nice heavy necklace. Any help would be greatly appreciated.
Regards,
Tracy
[/img]<a href="http://www.flickr.com/photos/56822221@N07/7955401208/" title=". by tracerchalhoub, on Flickr"><img src="http://farm9.staticflickr.com/8437/7955 ... 6737e6.jpg" width="500" height="489" alt="."></a>[/img]
<a href="http://www.flickr.com/photos/56822221@N07/7955400678/" title=". by tracerchalhoub, on Flickr"><img src="http://farm9.staticflickr.com/8173/7955 ... 2429a1.jpg" width="500" height="266" alt="."></a>

[dognose]

Hi,

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Trev.