During the height of WW2 the demands of ammunitions and vehicles increase and prioritize as the war progresses, the need of metals are to be allocated to meet the demands and as a result cap badges, rank pips, anything deem non essential are to be made with Bakelite or the alternative material to free up metals.
The condition of the items are good, with minor wear and some cracks, handle with care is recommended due to the decades passes these Bakelite are unable to hold up and losing it's original properties.