What on earth is this? It seems like a Gillette superspeed. W 3 code, with a brown tip. Picked up in an antique store. The hinge tabs are strange - one side is different from the other. It doesn’t look repaired (but I suppose it might be made from spare parts). The tip doesn’t look faded, it looks like it was meant to be brown, but why? It’s a nice little razor - light and mild - but I’m not sure what it is. Any ideas?