This looks like two midshipman’s hitches without the final half hitches: https://en.wikipedia.org/wiki/Taut-line_hitch#%231855 https://en.wikipedia.org/wiki/Tau

This looks like two midshipman’s hitches without the final half hitches: https://en.wikipedia.org/wiki/Taut-line_hitch#%231855 https://en.wikipedia.org/wiki/Taut-line_hitch#%231855