Just to confuse things a bit more !
A WW1 Armistice Exibition by Frittenden Historical Society has the same photo/postcard but it is labelled :
Quote:
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Cranbrook Home Guard - Loaned by Cranbrook Museum - Cranbrook Home Guard 1914-18
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https://www.frittendenarmistice.co.u.../artefacts.php
The photo/postcard appears to have possibly been mislabelled or wrongly attributed but perhaps if you contact the museum there may be more information available.
http://www.cranbrookmuseum.org/contacts.html
.