Pewter Stamp Boxes

A group of similar but different items often makes an interesting part of a collection. One collector has sent us this photograph of a nice group of USA pewter stamp boxes. Each has a hinged lid depicting a USA stamp and he has found an example of each of the stamps to accompany the corresponding box. They are modern and none has a maker’s mark. So here are questions for our readers: does anyone know who makes (made) these? Does anyone have a full list of the boxes made (so far) or, failing that, we would be glad to hear of other examples not in our photograph. All responses to will be published here anonymously.