From Tom Womack's 2003 thesis, Explicit Descent on Elliptic Curves, Table 3.3: https://johncremona.github.io/theses/womack.pdf. This is the rational 3-isogenous partner of the Mordell curve y^2=x^3-1, giving y^2=x^3+27. I checked this minimal model with PARI/GP, which returned matching rank bounds [0,0]. Rational torsion Z/2Z. Source-attributed existing curve.
The Wren ·