Can't figure out the sentence structure

[Elf.]

Hi there!
Can u help me to figure out the next sentence from the old astronomical article:

'Plate I is reduced one-half from Plate D 11367, which is a contact print from Plate A 3393, taken with the 24-inch Bruce Telescope on November 10, 1898, exposure 300 minutes.'

I can't understand wherever
Plate A 3393
or
a contact print from Plate A 3393
was taken with the 24-inch Bruce Telescope.

Pls help me!
Thx for advance

 

[emsr2d2]

Hi there!
Can you help me to figure out the next sentence from the old astronomical astronomy article?

'Plate I is reduced one-half from Plate D 11367, which is a contact print from Plate A 3393, taken with the 24-inch Bruce Telescope on November 10, 1898, exposure 300 minutes.'

I can't understand: wherever
Plate A 3393
or
a contact print from Plate A 3393
was taken with the 24-inch Bruce Telescope.

Pls Please help me!
Thx Thanks for in advance.

Please note my corrections above. Don't use non-standard words on the forum. "U", "pls" and "thx" do not exist.

Plate A3393, the original picture, was taken using the 24-inch Bruce Telescope.
Plate D11367 is a contact print, made from the original A3393.
Plate I is half the size of D11367.