Tigerella

Tigerella is a bi-colored tomato cultivar, relatively small, 2 to 4 ounces (60-120 g), and early (59 days).[1] Upon maturity the fruit is red with yellow stripes, essentially the same as Green Zebra, except that the fruit is red instead of green, and has a sweeter flavor. The colour occasionally varies, in New Zealand for instance, commercially produced Tigerella is dark crimson red with very dark green stripes.

Tigerella
Tigerella fruit
Tomato (Solanum lycopersicum)
Maturity	59 days
Type	Heirloom
Vine	Indeterminate
Plant height	9 feet (2.7 m)
Fruit weight	4 oz (110 g)
Leaf	Regular leaf
Color	Bicolor: Primarily red with yellow stripes
Shape	Globe

Seeds are available in the UK for the heirloom Tigerella (which has small plum/cherry-type tomatoes). In the USA there is also a hybrid (non-heirloom) beefsteak tomato that is also called Tigerella, for which culinary results seem to range widely according to a number of bloggers, from large firm and good-tasting fruit to inedible soft fruit which on cutting appears to be all gel and seeds.