Colour composite image for the central region of the massive lensing cluster G165, using LBT/ARGOS K-band for the 2016 Dec 15 run (red), + HST/WFC3 F160W (green), and F110W (blue) data. In total, 11 arclet families are discovered in this field as a result of the combined HST + K-band analysis, demonstrating the value of LUCI-ARGOS to provide high-resolution imaging that enables side-by-side comparisons (Frye et al. 2018). In addition to detecting the spatially resolved giant arc “1a” with its high estimated magnification factor of ∼30, the K-band data also unveil another image of this same background galaxy “1b”, that falls at its model predicted location. The secure identification of this doubly-imaged family enables us to construct a robust lens model. The brightest objects in our K image belong to the triply-imaged Arcs 2a, 2b and 2c, as labeled. North is in the direction of the compass arrow and east is to the left. A 10^′′ scale bar is shown in the bottom left corner for reference.