Many thanks for that. I think I have seen that before but not sure where, in the club history book perhaps ? As Bob says it looks like an as built drawing. While the plan says 1888 (the year the course became 18 holes), I'm not entirely convinced that it was produced then but was maybe a later plan showing how the course was back then. What is interesting is that it shows a continuous course rather than individual hole fairways which is similar to how I remember the BHB plan of the New course. As you say, I don't think they would be relying entirely on sheep for cutting the grass and I suspect that they were using horse drawn gang mowers about then.
I recall Tom Paul asked that very question on here but I'm not sure he got a satisfactory answer. Certainly there were routing plans produced, either side of the Atlantic, before BHB did his plan for the New course but the question is whether they were produced after or before the courses were built/laid out. Given how elementary a lot of construction was back then compared to now, how much use would a plan have been for building purposes ? What I mean by that is when were plans produced for construction purposes ? I know (or at least I think I do) that Old Tom and Archie Simpson did separate plans for Cruden Bay in the mid 1890's prior to construction but I think that was more for consideration by the railway company to decide which plan to go with.