Based on the century of creation, II Gesu belongs to the late renaissance but significantly marks the influence of the italian baroque architecture(the ceiling is heavily ornate but the outside facade is closer to protestant/renaissance)
The actual material being printed on is usually paper which is out of wood, how ever the printer may be made out of metal, and I am confused on which one you are asking about.
The letters are A, C, E, and G. you can remember this by the acronym ‘All Cars Eat Gas’