Last week's close view was
by Adrian and Wilma as a battery. Well done. As it happens it was a rechargeable size D. My thanks to all who have a look at these puzzle photos and especially to those who have a go at identifying them.
This week we have a side on view
of part of .... what? If you would like to make a guess please leave it in the comments. They will be revealed, with the answer, next Monday.