Marrow/courgette

Has anyone seen marrows or courgettes that look like this, apparently the plant grew all its offspring with this sharply defined green to yellow effect.

 

Looks like a Zephyr Squash.

Zephyr - (F1) Yellow Summer Squash Seed | Johnny's Selected Seeds

 

Apparently it came up after spreading garden compost from the year before.
Not sure if something like that was grown the year earlier.

 

I grew them ages ago, Mrs Scrungee reckons about 26+ years ago. Probably because they were end of season reduced or at a car boot sale for 10p. Can't remember what they tasted like. I think they weren't as successful as growing a mix of plain green and plain yellow courgettes so never bothered again

 

Thanks @Scrungee