T1o-

Notation
Nautilus 1LLL
LL Trapezoids / T1
Match the case drawing, including the side colours and the pieces already solved; hold the puzzle as drawn.
Your status
Recognition & spaced review

Algorithms (2)

(R') first, then:
U' L R L' R' U R U' L' B L B' U
My choice
13 HTM · 13 STM · 13 QTM
rotationless
<U,R,L,B>
Do R' first on the case as drawn. · Cubemuch
(R') first, then:
Lw' U' R U' B L' B' L U L R' L' U Lw
14 HTM · 14 STM · 14 QTM
rotationless
<U,R,L,B>
Do R' first on the case as drawn. · Cubemuch

How this case is verified

The source's case image defines this case; its setup is reconstructed and checked against that independent pattern. Setup: R' Lw' U' L R L' U' L' B L B' U R' U Lw R. Every algorithm above was run by our logic engine from that state and reaches "solved-up-to-r".