I have run across many Apollo bicycles, and still have a few hanging in The Old Shed.

Your bicycle is an entry level model and successor to the Apollo Sport 10, which had five cogs, as opposed to the six on the Sport 12. The frame set is high tensile steel and straight gauge.

These bicycles were fairly well made and finished. They offer a ride typical of a recreational road bicycle. They are, as a rule, quite attractive with their two color paint jobs and that wonderful old headbadge.

I have an Apollo Gran Sport that I am thinking of restoring someday and it is a really nice bike. I also have an Apollo Mark III, another fairly high ender. And, sadly, I sold my Apollo "Gran Touriste".

Here is a picture of a Sport 10, which is very similar to your bicycle...