I just purchased and received on Ebay from a seller in Thailand an unusual Parker 51. The barrel and section are orange, the barrel is longer than that on a true standard 51, and the filling system is C/C, but takes International Standard("IS") C/C, not Parker versions (which are too thick). I placed an IS converter in it, and it draws in and expels water perfectly. The photos below look at bit more red-orange than under normal lighting conditions. One of the photos compares the length of the orange one to a Bexley-created standard size yellow lucite one. I have seen an orange Parker 51 on another page at FPN, and it was standard size and apparently a Kullock creation. Does anyone else have an orange 51 and/or photos of one?