Tonight’s object is a bit of minor mystery, which neither myself nor other collectors I know have yet been able to answer. This large webbing pack is a little taller than a standard 08 large pack:It is clearly marked with its contents ‘Pack Ancillaries, 20mm Mountings Mk 1, I.E.L. Co, 1945’:Herein lies the problem! What 20mm mounting is this pack associated with? The pack itself has phenolin resin impregnated tips to the ends of the straps:This was an economy measure used by Canada in its webbing manufacture after 1944, suggesting that the bag would have been made for a Canadian produced 20mm anti-aircraft gun, the most likely contender being the Polsten gun:The Polsten was a Polish developed version of the Oerlikon that was simpler and cheaper to manufacture. The design team fled the Nazi invasion and the gun was manufactured in huge quantities for the Allies- Jon Inglis of Toronto in Canada producing many thousands of these guns. I have no confirmation that the pack is for this gun, but it’s certainly a strong possibility. To return to the pack, if we look at the rear we can see a series of straps and buckles:These fastenings are a paired short strap and a buckle:Presumably the strap was wrapped around a metal tube or similar, and then tightened up to hold it secure, but exactly how these worked and what they attached to is a bit of a mystery- if anyone can help fill in the gaps with this piece of webbing please get in contact as it would be nice to have a definitive answer! I apologise for the vagueness of tonight’s post, but so far my research has drawn something of a blank, however it is still an interesting piece of webbing and I hope it has been of interest.