There are no Rules
Monday, July 13th, 2020
This ES-355 has a 66 serial number but it has a wide-nearly 1 11/16″ nut. It could be that it was a leftover from 65 as 355’s were pretty low volume sellers. No rules.
I try very hard to find consistency when discussing Gibsons from the so-called “Golden Era”. Certain rules and features seem to apply most of the time…PAFs until 62, then mixed PAFs and patents from 62-64, wide nut until mid 65, stop tails until early 65 and a whole lot of other features that follow a fairly predictable timeline. Except when they don’t.
One of the most desirable features of 58- early 65 ES models is the wide nut. We call it 1 11/16″ but it varies from just over 1 5/8″ to just over 1 11/16″ but all of them are wider than the 1 9/16″ nut that was introduced in mid 65 and has rendered mid 65’s to 1981 models less desirable to many players and that’s a really big deal. Imagine if 68’s had the wide nut (it’s a common misconception that they do). They would be the most desirable year post 64 for sure. Yes, 68’s had the trapeze and often had t-tops but those things can be changed. But you can’t make a narrow neck into a wide one without some very expensive (and invasive) surgery. Then a rule breaker shows up.
It is pretty commonly known that models like Byrdlands, L-5’s, Kessels and 355’s sold in fairly low numbers. Even with the low volume, they would generally make a “rack” of the same model (usually 35 guitars) all at once and then sit on the unfinished guitars until they had an order to fill. That’s why you sometimes see patent number pickups in a 61 guitar or some other earlier feature in a guitar with a later serial number. The guitars were simply built in one year and sold in the next year (or later). That’s how we end up with 1960 guitars with 1958 factory order numbers for example. But there are no FON’s after 61, so we have only the features to go by when we are trying to figure out what year the guitar was built (or at least started).
I recently purchased a 1966 ES-355 with a wide nut-just under 1 11/16″. It is the second 66 ES-355 I’ve encountered with that feature. That probably means that the guitar was built in early 65 (or at least the neck was carved then) and sat somewhere until an order came in some time in 66. I’m sure that a bunch of narrow nut 355’s went out in 65 and early 66 because I’ve seen plenty of them. So why did this one sit? Maybe it had a small flaw or maybe it was at the back of the pile and more newly made ones were headed out the door first. Without a time machine, it’s hard to know. The larger point is that all the rules I write about get broken time and time again and it isn’t always possible to come up with a reason. You could easily ask “was it re-necked later with a custom ordered neck?” Or maybe it was simply a custom order that specified a particular nut width. I know it wasn’t re-necked (it’s pretty easy to tell) but I suppose it could have been a custom order. Again, where did I leave the keys to the time machine.
I’ve had a similar experience with another 66. This was a 345 with honest to god Mickey Mouse ears. Left over early 60’s body? Maybe. Probably. The rule is that MM ears were gone by late 63 when they redid the jigs for making ES 335, 345 and 355 bodies. But this 345 and at least two others I’ve seen made their way out the door in 1966. So, no rule is a hard and fast rule and no feature is 100% consistent over the era of 1958 to 1969. After 1969, you’re on your own-I just don’t see enough of them to know much. Let me know if you have an oddball like these. It gives me something to write about.

A 66 should not have Mickey Mouse ear cutaways. And yet, this one does and at least two others I’ve seen do as well. There is a fair amount of inconsistency in the shape of the cutaways from 66 to 67 (pointy ear, “fox ear”, etc) but Mickeys? No. Great player too, by the way, although I’m sure it had nothing to do with the ears. If I recall, this one had early patent numbers which might have had something to do with it.