Years ago I enquired at a Greetings card (and postcard) manufacturer whether they were taking submissions.
They replied with a very none committal answer saying if I send 10 of my best work including artwork - they would take a look.
I had no 'artwork, I presumed they would do that. Just good greeting card jokes.
There was no internet or home printers in those days so had to fold A4 paper into a card and a friend who was 'arty drew them. (he was on a profit share with me from the proceeds)
Eventually (6 months) I received a letter saying they would use just 1 and I would be paid £10 once it had gone into print.
The company was called Rust Craft and about that time, they were taken over.
I never received my tenner but the card was printed. I saw it on the shelves of greeting card shops.
Those were the days I thought getting published was going to be easy.