Hi Sean
The History Record you looked at is the best I could
work out on the 720's and 520's.

https://www.outdoorking-forum.com.au/forum/u...odel-72-52-high-arch-rotaries-c1971.html

You have already seen that.

I agree that yours is most probably a 720016.

Sorry I have no other information at this time.

Cheers
----------------------
Jack

Entire Thread
Subject	Posted By	Posted
Scott Bonnar Viking	Hermosil	07/12/16 12:24 PM
Re: Scott Bonnar Viking	CyberJack	07/12/16 02:02 PM
Re: Scott Bonnar Viking	Hermosil	07/12/16 04:06 PM
Re: Scott Bonnar Viking	CyberJack	07/12/16 06:50 PM
Re: Scott Bonnar Viking	Seanoss	27/10/21 05:11 AM
Re: Scott Bonnar Viking	CyberJack	28/10/21 10:06 AM

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