Foundry proof and Trial impression

Foundry proof noun - A proof taken from a form before duplicate plates are made.

Trial impression and foundry proof are semantically related. In some cases you can use "Trial impression" instead a noun phrase "Foundry proof".

Trial impression noun - (printing) an impression made to check for errors.

Foundry proof and trial impression are semantically related. Sometimes you can replace phrase "Foundry proof" with "Trial impression", this phrases are similar.