Flash Spotting display - Ross Baker, with Graham (Blue) Johnson, and Ivan Mills. Behind Ross is Greg Davidson.

Flash Spotting display - Graham (Blue) Johnson with Ivan Mills. In background at the Sound Ranging display is Wayne Nash

Flash Spotting display - Allan Harrison with Bob Morrison

Flash Spotting display - Graham (Blue) Johnson with Greg Davidson

Flash Spotting display - construction team looking on as Ross probes

Flash Spotting display - Graham (Blue) Johnson, Ivan Mills and Ross Baker

Flash Spotting display - Ivan Mills, and Ross Baker is still probing

Greg Davidson cementing the stone slabs into place for the Flash Spotting display

Flash Spotting display - Graham (Blue) Johnson

Flash Spotting display - Greg Davidson cementing with Wayne Nash at left of background

Flash Spotting display - construction team hard at work

Flash Spotting display - Ross Baker & Greg Davidson with newly acquired member

Flash Spotting display - Ross Baker & Greg Davidson with newly acquired member

Flash Spotting display - Professor Peter Oppenheim seems to be asking – “I'm looking for my front wall in my garden to be re-built. Can you guys see me after please”

“Let’s set up the brew here” Joe seems to be suggesting to Bob Morrison and Allan Harrison.

OK - Now whadda we do ?

Whadda you mean “whadda we do”! how about …

Greg Davidson foreground mixing concrete for Flash Spotting display, and in the background, the sign goes up on Sound Ranging display

Joe Kaplun tying off the Locating Artillery sign with mannequin at the plotting board

Joe adjusts the sign on the Sound Ranging display then asks “is that straight”

Everyone gathers around the Sound Ranging display – “No its not straight Joe”.

“Joe - it’s still not straight” - Wayne Nash seems to be calling out to Joe.

Ivan Mills leans to one side and appears to be saying “at this angle Joe, yes it is straight” and Wayne Nash appears to be sending Ivan back to the Flash Spotting display.

Inside the Sound Ranging tent with final adjustments to the display - “right one” - “steady” - “stand clear”.

Sound Ranging display – Bob Morrison directs the mannequin to ‘stand fast’.

Sound Ranging display - finished for the day - a sombre moment - now, a time for prayer of thanks.

‘Stand down’ - days end, and Flash Spotting & Sound Ranging are starting to take shape.