"invitation card" is a correct and usable phrase in written English.
You can use it whenever you want to refer to the card that invites people to an event. For example, "Please bring your invitation card to the wedding ceremony."
[Invitation card with putto] [graphic].
I got the invitation card for his new exhibition, The Souls, and... liked it.
They disliked Bilbo and detested Frodo, but so magnificent was the invitation card, written in golden ink, that they had felt it was impossible to refuse.
Evidently the 22-year-old artist who achieved it would one day do more than make devastating jottings on the back of an invitation card to his first one-man show.
He explained why in a summary of the luncheon discussion he wrote with a ballpoint pen on his invitation card before he filed it among his papers: Opportunity to present views to Gen Taylor as one of four advisors so selected (2 Capt's & 1 Maj & myself).
Figure 2 Screenshot from the film ( http://bit.ly/Keep_Your_Boots_Muddy ), which was also used as invitation card for the exhibition.
Children and their families are receiving special invitation cards inviting them to the vaccination session in their villages.
Take your fancy invitation cards and write this message in cursive: "You are cordially invited to my party on (when your party is), at (what time your party is).Please attend with pleasure and grace.
No one had phones in those days and she wanted to give them invitation cards with the directions.
Dozens were camped outside the velvet rope, flashing special V.I.P. pins, yellow invitation cards and various names, to try to get in.
New NATO invitation cards will not be given out easily, since the war in Kosovo showed that defence is a serious business.
