I found this list of UK Pattern 37 maker codes which I thought is useful, however, it may not be a complete list.
Webbing Manufacturers Codes | Tales from the Supply Depot
WWIIReenacting.co.uk Forums View topic - WW2 BRITISH Webbing Manufactures
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I found this list of UK Pattern 37 maker codes which I thought is useful, however, it may not be a complete list.
Webbing Manufacturers Codes | Tales from the Supply Depot
WWIIReenacting.co.uk Forums View topic - WW2 BRITISH Webbing Manufactures