The venue was Pudsey, West Yorkshire. The medals belonged to Sergeant Julien. No mention of regiment etc. A search on google revealed possible match?: 1454 Sjt. W. E. Julien, 1 Battalion British West Indies Regiment (St. Georges, Grenada)
For gallantry and devotion to duty at Damieh Bridgehead, Jordon Valley on the 22nd September, 1918. He commanded his platoon with the utmost efficiency in the attack on the bridgehead, and after the successful assault he re-organised his platoon and led them with great gallantry over the broken ground, which was still occupied by the enemy, capturing two machine guns and a number of prisoners.
Supplement to the London Gazette, 25 February 1920, 2288
A DCM, War Medal & Victory medal were for sale. A few items of ephemera, a platoon roll book and a possible old comrades card. Sold for £1350.
Thanks for that info - I didn't realise that there was also a DCM in the medal group