a J. Lancaster & Son 1902 Brass Bound Instantograph 1/4 plate with Rapid Rectinlinear 5x4 Optimus lens (sadly the camera has no back and plate holders and the lens has no Waterhouse stops included) I bought this setup for the lens to use on a Speed Graphic some time in the future. Though I have been playing around with idea to make a back that can take standard 4x5 holders (though will still produce a 1/4 plate sized image on the film, but that idea didn't go further than a cardboard proof of concept mockup, the GG part has me stumped.