Hi wce and Tyler,
wce, the wheels have no bearing (excuse pun) on whether it's a store brand. Both regular Victa models and store specials received the ball bearing wheels without a logo in the centre and the cheaper nylon sleeve wheels with the pointy V imprinted in the centre.
This looks to be a hybrid store brand like the red Monaro with the same base and engine cover style.
An unofficial complementary Victa model for stores and not part of the official Victa range in the brochures.
I'm not surprised that catcher is undamaged. That particular shaped thumb latch catcher design seems to have proven the most robust. Great score all round.
I'd advise you to drill a 2 or 3 mm hole at the end of the crack to stop it's spread as an interim measure before you get around to repair it.