Is anyone aware of the unique features of the early silverface amps. Like the double green thread grillcloth and the fact that some of them had a tailess logo. At one time I had a collection of these amps. The double green thread grill cloth was used on the early examples. The book, " Fender amps the first 50 years" shows a couple of examples. One of the examples is an add with a young couple with silverface amps behind them. I don't have the book handy to give the page # of that add. I was hoping some of you might have examples of these amps and can post close ups of the grill cloth and the tailess logo.