Some great photos, artwork and cartoons in those books..........!
The mortar fire photo is great
These should be worth a packet, if they had not printed so many of them. I have the full WWII set including the RAN and RAAF titles and a couple in their postal delivery boxes. Soldiers serving overseas could order them home delivered as Christmas presents. Watch out for ones that still have their paper wrappers (and get them protected in plastic!). These still turn up in Opp shops and second hand book shops usually have a stack that they can not get rid of.