First of all I have the Schreiber "Rococo proscenium".

It is not the original but the reprint by Mr Raab from Germany. Its size fits the smaller Schreiber sheets and it comes complete with the "Krieger Zelt" set. The sheets 671 to 673.

Everything mounted on cardboard and ready for display.

I would say that the quality is "good".

The next one is the "Moorish Proscenium" by Prior, mounted on cardboard.

It is quite large, about 70*55 cm. so sending it will cost me a lot. You can find the proscenium on page 95 of Peter Baldwin's book.
Quality "good".

By the way I do have the blue "Pegasus proscenium" by Allers.

You'll find it on page 113 of the above book.It is definitely large and mounted on wood and cardboard so it is absolutely impossible to send it! Anyone in my neighbourhood interested, should come and get it. This summer I will throw it away!
Quality is "avarage" I should say. meaning wear and tear and some damage.

Make me an offer