Everything on this amp works flawlessly. I replaced the torn tolex shortly after receiving it and replaced a capacitor in 07. I recently had the VIB switch in the footswitch replaced. Grill cloth is as I received it (probably original). On the tube sticker inside the cab, (See pics), I question the tale of the letter “Q”. It almost appears to be a squiggly line through what may be the letter “O”. “Q” would indicate the year 1967. “O” would indicate the year 1965. Chassis #A 00152 indicates 1964. Transformer #606343 Indicates 1963. Far and away, the outstanding feature of this amp is the Celestion G12 Vintage 30 speakers made on Foxhall Rd. These speakers came with the amp when I acquired it. These speakers are highly efficient and slightly louder than most. It is located here in southern, Colorado. If you ever dreamed of what a vintage Fender amp would sound like through vintage Celestion speakers, your dream is here, now. Vinyl cover is included.