This cache is part of the Potch History series. Search all of them to discover the historic richness of Potch:
Potch History 1 - Oak lane
Potch History 2 - Vyfhoek gedenktuin
Potch History 3 - Lokomotief
Potch History 4B - Eerste kerkgebou
Potch History 5 - Pretorius Museum
Potch History 6 - Totius Museum
Potch History 7 - Goetz/Fleischack Museum
1. Download the picture from (link)
2. Go to the starting location. Use the picture to get the “number sequence”. Have you looked at the picture again? Be carefull here!
3. Head in a SW-direction (235 degrees) for 72m. You will find a national monument. Waypoint 1 will also direct you.
You can view this monument during the office hours Monday to Friday 09h00 to 14h00. Entry is free. You can also visit it during congregation on Sundays from 08h00 to 11h00 or from 17:30 to 19:30. Wedding functions are also held here.
Clue 2 
Some info on the building:
This first church building of the Potchefstroom Gereformeerde congregation was designed by Rev. Dirk Postma and was complete with the assistance of members of the congregation at a cost of XXX pound in YYYY. The general synod assembled here in 1869 when it was decided to establish its own Theological school at Burgersdorp in 1897. A second and larger church was built in 1922. The “ou kerkie” accommodated the Physics department of the former University College of Potchefstroom.
4. Final location hint:
3 Professors of RSA is going to make this difficult. Use the first two prime digits in the “number sequence” you determined in point 2 above as your primes. And mayb”e” use this number somewhere: (YYYY-XXX)/88
Final location is partially encrypted:
S 26°42.3QR
E 27° 5.8TU
With the encrypted codes as follow:
Q=1, R=12, T=0, U=6
You can check your final location at this Geochecker link.
Happy caching!
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