I have a First World War bayonet with the marking ‘OX’ or ‘XO’ depending on which way round you read it. I believe ‘OX’ to be the abbreviation of The Oxford and Buckinghamshire Light Infantry, is this assumption correct or does the marking mean something else?

The bayonet is 1916 Wilkinson produced, does anyone know how much this maybe worth considering the marking on the grip?

Regards Matt

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Better quality image here:
http://www.flickr.com/photos/77855005@N04/7313736482/in/photostream