hey jp,
cant help, as the reference i lost, and then found was the elliot and snowden catalogue of the mid 70s. the image is B/W and the dagger is sheathed. the image is not of quality, and yours is much better. will happily forward the image and details if you dont have the reference.
ys, its annoying looking for something you know you have. try looking for something else, like your car keys
B