Benjamin model EB22.
Crosman model 2240.
Benjamin Marauder Air or C02 Pistol.
All 3 of these are .22 cal C02 air pistols, There are several others but they are spring or pneumatic not C02 systems
German or Italian. Most likely Italian
The Crosman model 150 was made between 1954-1967. It is a .22 cal pellet pistol.
Glok 22
Yes.
Impossible to identify without a detailed description of all markings.
No it will jam in the barrel.
Possibly Herbert Schmidt
about 250 dollars
50 or so
french made nice pistol
1946
Follow the instructions in the owner's manual.