Traded my 68 custom princeton reverb for what I was told but I'm not sure, is a 1974 princeton reverb with a weber 10f150t speaker and original glass. It's honestly a much better sounding amp. The reverb is glorious and not metallic sounding and the tremolo is glorious as well, It's weird this amp seems to have more bass on tap than the custom, it can really shake the floors but at the same time the bass doesn't overwhelm the amp like the custom did for me. I can put the bass on ten and still get usable tones for just solo playing. Also this amp is dead quiet you can't even tell it's on if the volume is on ten, whereas the custom was pretty noisy at ten. The reason I'm doubting it's a 74 is because of the orange and silver grille cloth, didn't this come later in the 70s? Also it seems like it doesn't have as much volume as the custom did, could this mean its due for a cap change? Or are caps and output unrelated? The tubes do seem original they're all RCA. Anyways overall I'm very happy with the trade and now have something I can proudly pass through the family. It may need some work but I know a guy who does good work for a good price. If anyone can answer my questions I'd greatly appreciate it.