Dear Brothers/sisters in crime (survey world), im seeking some assistance.

Im looking to find the correct wording for a tool needed for placing a totall station onto a trigonometrical station (concrete pillar, painted white, ontop of a mountain).

I have used them before but cant seem to remember the name of this little tool.

It is a heavy base unit with 3 spikes (Metal), and placed beneeth the tribrach, and positioned derectly center above this special (difficult) markr point.

It replaces the use of a Tripod, that might be suiteble due to the suroundings where you are located.

PLease advise what of its name, so i can order one of them online.

Kind regards, from your brother surveyor (Oscar van der Kaap) located on the island of Sint Maarten (Netherlands Antillies, Carribean).