A model is a three-dimensional of a person/thing or of a proposed structure.
A mock up is a model or replica of a machine or structure, used for instructional or experimental purposes.
A prototype is a first or preliminary version of a device or vehicle from which other forms are developed.
Mortar / Iron ties / Dome beams / Pressure of pillars and beams
Wait am i supposed to put them in order
Were there supposed to be more options?
Its Timbre though.
