Firstly - Hullo to you all.

I run a Mens Shed for War Veterans called "VETERANS MENS SHED KINGSEY".

We are restoring an Alroh 20 inch cut. On the serial number plate it has 17DBD.

Can I ask please: what does the 17 indicate as it is a 20 inch cut?

It has a B & S 4 HP engine dated 1975. Also on the tag is the Subiaco address where Alroh started up.

Can I also assume that this mower is an early 70's machine?

Looking for some help please.