How strange, Steve. I have seen those pictured from time to time, and always referred to as "hate belts"...That's one super example Justin, well done for getting it but I am more than a little confused by the use of the term "hate" belt.
I have been around militaria for over fifty years and never heard it used. Most that I saw were regarded as souvenirs of someone's service. Back in the fifties I remember seeing guys delivering coal who wore them every day for work, same for dock labourers.
Steve