Some new things, lets play a guessing game

[nzl1a1collector]

Towards the end of service Trentham was rebuilding 100 rifles a week. Unlike maybe the American's New Zealand couldn't afford to simply just throw away usable parts. If it was serviceable it was reused. So this gauge was made in house to provide an easy test to check that the spring complied with the required compression under an 8.5 lb load. This way they could quickly and easily check 100 springs at a time, those that failed went to the bin, the other were reused and supplemented with replacements from stores.