Brass buckles used on both Pattern 1908 and Pattern 1937 webbing equipment

As far as I could find they were used on

Cartridge Carriers
Stores Ref. A1/AA 0563 Carriers, cartridge, W.E. Patt. 37
Stores Ref. CN/AA 0563 Web Equipment, Patt. ’37, Carriers, cartridge

Carriers for Entrenching tools, Patterns 1939 & 1937
Stores Ref. CN/AA 0564 Web Equipment, Patt. ’37, Carrier, implement, entrenching

Water Bottle Carriers
Stores Ref. A1/AA 0576 Carrier, water-bottle, W.E. Patt. ‘37
Stores Ref. CN/AA 0576 Web Equipment, Patt. ’37, Carrier, water bottle

Haversacks
Stores Ref. A1/AA 1017 Haversack, W.E. Patt. ’08 (modified)
Stores Ref. A1/AA 1019 Haversack, W.E. Patt. ’37, Officers
Stores Ref. A1/AA 1019 Web Equipment, Patt. ’37, Haversack, officers

Packs
Stores Ref. A1/AA 1370 Pack, W.E. Patt. ‘08
Stores Ref. A1/AA 1370 Pack
Stores Ref. CN/AA 1370 Web Equipment, Patt. ’37, Pack

Officers' Accoutrements
Stores Ref. A1/AA 0611 Case, binocular, W.E. Patt. ‘37 Updated!
Stores Ref. CN/AA 0611 Web Equipment, Patt. ’37, Case, binocular