Hi Disbo100 the checkered metal grip one i have only ever seen the one i own never ever seen another one for sale and considering mine cost me �12.50 i don't think that's any guide line.
Hi Gaspare i have found a picture of the other one that you mentioned (Looks like #5 but more of a eagles head with fake press bayo stud )in Eugen von Halasz book.
The one above i would think is impossible to find! but hey i am going to keep looking