Left: integrated spectra of the chair-shaped relic and its subregions from 144 MHz to 5.5 GHz. The overall spectrum of the entire relic is well-described by a single power law with the slope of α = −1.16 ± 0.03. The subregions also follow a power-law distribution and show similar spectral slopes. The total flux density of the relic and R3 is obtained after masking the contribution from the NAT (shown with red box). Right: blue regions indicate areas from which the flux densities were extracted to obtain the integrated spectra of the relic and its subregions.