Spectropolarimetric observations of the Fe XIII 10747 Å forbidden emission line, including the coronal line peak amplitude, Doppler velocity, line width, and linear polarization fraction (L/I) (from left to right) for the 2025 August 8 (top row) and 2025 October 5 (bottom row) cavities. The linear polarization angle is shown as the pink arrows plotted over the linear polarization fraction. The egg fits to the cavities are included for context. For the 2025 October 5 cavity, we outline the prominence in green, based on the continuum signal in the Fe XIII observation.