These figures came with an ebay lot. I had never see figures like them before and had no information about the manufacturer of them. The bases are printed with "Giant" and "Hong Kong". Seems like a first hint.
Their armament consists of German WW2 weapons like MP40, MG34, Panzerschreck and Stielhandgranate. Maybe these guys should be German infantry from world war 2.
I did not know anything about the Giant corporation. Google did. I found this interesting article at the Hät homepage and some other smaller sources which gave me a some information.
This is what I found out: They appear as "World War 2 German infantry" in 10 different poses and were manufactured by the Giant corporation. They are downsized copies of old Marx figures, a picture of it can be found on this homepage. They were made between 1960 and 1970 (found an ebay auction that said 1969) in Hong Kong.
To the conclusion a comparison with figures of other manufacturers:
First row (1:72):
Pegasus Volkssturm, Giant, Esci Paratrooper, Giant, Revell Pioneer, Giant
Second row (1:76):
Matchbox Infantry, Giant, Airfix Afrikakorps, Giant, Matchbox Afrikakorps, Giant, Airfix Infantry