You can type the text into Google translate.

Looks like French to me. My high school French has me guessing it is an invitation.

It's a printing plate from a formal engraved announcement. The first line says "we have the honor...." in French. and the date is December 14, 1988.
Printing used to be done with a plate and set type. I have several old images, including one wirh my father in law's signature, from when he would have business letters printed and another with my name from some formal note cards.
Clean it up and see if you can get a clearer image amd I can probably translate it for you.

Roughly translated, it says, "We have the honour to inform you that due to the end of the lease the offices and shops of the shoe factory (can't read the name) &Sons and (can't read this name either) will be transferred from 1st December 192(?)8 to (can't read the name) 6 Place Licat"

Your eyes are better than mine!!

Thanks for your translation, Colleen! It would indeed appear to be some sort of notification of a shoe factory moving premises. Not quite Rock 'n' Roll, but interesting none the less!

A chap on Facebook's take on it was that it says:

"We are honoured to inform you that due to the end of the lease, the offices and shop of the shoe factory ... will be transferred starting December 1st 1928 to Liedts Square numbers 9 to 6."

And he thinks the names are Huens, Herieke jr. and Rousselbeck Company Successors.

So, 1928 then! I'm quite pleased about that. I've tried to look up that company a bit but no joy so far.

I'm wondering how they managed to turn someone's written handwriting into a metal stamp though?!

They take the handwritten item and trace it with wax on a soft lead based metal then treat with acid to remove all that is not the written word.
I have a carton of old type....and at least one drawer to store it in...I also have several brass and copper plates...one of a pig....and another of a flag.....aas well as various decorative items used to fill in the edges of a printed page. Within my recent memory there was a real old fashioned print shop where you could go and order an invitation or a program for an event or a club booklet and Mr Allen would set the type....call you to veiw a proof before he ran the full run.

When I was in college the place had policy that women had to live in the dorms to take classes unless they lived out of town. To live in the dorms you had to be a full time student. Not being able to afford a car I had to take filler classes to complete my degree. Printing both using a clam shell and offset were part of the classes that I took. The method Lindac mentioned was one of the methods used but a soft plastic was used by the time I took my class. There are still places that will make masters for artists but print shops no longer use them.

Depending on the final use of the printed product would depend on how it was used.