do you have a close-up of the actual center photo/drawing? Or can you give us a description? That would be a big help in identifying it.
Also are there any words/names etc. printed anywhere?
I do know that embroidered post cards were in style during World War I – so this may be from that era, but without more of a description – or better, closer, and clearer photos, people on here cannot give you a good identification –
sorry.
ken