I think the straps have come from something else and have been added to this rucksack at a later date , I have seen a lot of post war made rucksacks that have had 37 patt straps and parts used on them
thanks kradman, i thought this would be the case, but whoever did it must have been a bit of a perfectionist. All the straps are dated 1942 and seem to be in the same place.
"They couldn't hit an elephant at this dist...."
- Major-General John Sedgwick, 9 may 1864.
Killed by a sniper during the battle of Spotsylvania..
I agree, I have a very similar one with 1943 and 44 dates on it, but they are clearly recycled 1937 pat.
On yours, The font and size of the numerals is a little odd, also the weave, but the Bergen itself is a bit far from pattern.