+1 H!
Those aiming guides are at OAK ##1, 3, 4 and 5, usually hidden by the aiming square.
The building at STA is Pilmour House, a public clubhouse with a big restaurant in it, shop etc. as well as the starters and first tees of the New and Jubilee courses. There's a big parking lot on the seaward side, and closer to town (direction of Swilcan Bridge) there is the Ladies Putting Club with the fabulous "Himalayas" putting playground.
Memories...
*sighs*