Sacrificed (on Orange)

And finally . . . #7 in this mini-series of abstract circles.

Not a hole this time but a circular lump of zinc bolted to the iron rudder of one of the boats on the quayside down at Dysart Harbour.  The chemistry involved means that the zinc corrodes in preference to the iron, hence it is called a 'sacrificial anode' (look it up on Google if you want to know more).

I know these blips have not been to everyone's taste so thank you for your patience while I indulged myself.

Normal service will be resumed tomorrow.