Spectra Systems, a machine-readable high speed banknote authentication company, completed the acquisition of Cartor Holdings, a security printing company, for $10.5m. Financial terms were not disclosed. The acquisition of Cartor Holdings aligns with Spectra Systems' goal of streamlining its production supply chain and delivering top-notch solutions to its clients. This strategic move demonstrates Spectra Systems' commitment to innovation and growth in the authentication technology sector, ultimately benefiting its customers and shareholders alike.