Interesting, interesting.
In the extraordinarily hot summer of 76, my summer job as a student was working in the warehouse of a distribution company loading lorries with a variety of soft drinks, for delivery to shops. One of the perks of the job was free drinks and in the heat I was consuming more than a gallon a day. After two weeks I realised that all carbonated drinks had more in common than they did to separate them and I had come to a point where I could not tell them apart - except for colour.
The point about maintenance of golden age courses is well made. I will post this winter about Hainault Forrest GC which has 18 holes by Taylor/Hawtree and 18 by Braid. 70 years on all bunkers look the same. I think this is also true of Sunnigdale; 18 by Park, 18 by Colt. However there is a difference in the use and position of bunkers, but signs of individual style are now very subtle. To distinguish you have only part of the information that was originally available to you - so it would be a connoisseur indeed who could identify golden age today courses by bunkering alone.
This question gets right to the heart of one of the major reasons why 'restoration' might be considered a desirable thing. How much do we value the GCA as an artist? To get a full appreciation of the artistry we need to be able to observe all the details.