Remember, your amp is newer than the newest component.
For example, if you find pots from late ‘64 and transformers from early ’65, you can be pretty sure your amp is a 1965.
I’m feeling pretty good that the dates all line up on this amp and I have an amp made in March 1959 with an original Oxford speaker.
Please consider Tone Gems a resource for vintage guitars, amps and gear of non-repute. In fact, the 5XL is identical in electronics and appearance to the earlier Silvertone 14 amps that were built by Danelectro.
My son Jon, who likes to play alternative and indie stuff, thought this amp would be a perfect match for his 1950′s Gretsch Electromatic or his newer custom modified Telecaster. It has one channel, two instrument inputs, and separate volume and tone controls.