The original walls and first prison block buildings to incarcerate prisoners were built in 1862. E BLOCK was the first completed solitary block in 1862. Many other facilities were added during the next 60 odd years.
H Block that housed The Gallows was completed in 1934. There was a small courtyard near the entrance of the block, that was walled off from the rest of the prison. This allowed a half hour exercise time to prisoners each day, but effectively cut them off from communicating with the other prisoners incarcerated in the rest of the prison
It is believed that 4 prisoners met their ultimate fate in that first year. Research is still ongoing concerning the number of guilty prisoners who were sentenced to H Block, and how many of them died by means of the gallows that was housed in this block. It is known that many political prisoners were kept in this block, isolated from other prisoners for fear that they would incite insurrection among the non-political prisoners. It is known that many prisoners guilty of crimes of treason, murder, rape, and aggravated assault were sentenced to death. Although many sentences were commuted to life imprisonment and the prisoners transferred to other maximum security facilities (mostly to Barberton in the then Eastern Transvaal), many guilty of the aforementioned crimes died on the gallows in H Block.
This cache is placed with permission of the management of Project Gateway (however they are not aware of the positioning of the cache). Project Gateway is a NPO that manages the Old Prison and they have established a primary school, small conference centre, touristy retail outlets and coffee shoppe in the grounds.
PLEASE NOTE - cache is only available when the prison gates are open, which is between 07h30 and 16h00 weekdays and shortened hours over the weekend. It should be a quick park, grab, sign, and go....... NO NEED TO ENTER H BLOCK BUILDING, which is now the administration center for Project Gateway, .......and PLEASE be aware for Muggles, as this container is in a public place.
Please bring your own pen.
ENJOY ! 
WELL DONE to LOST LANDIE on the FTF within a day of being published !