Try this link Dave- https://www.facebook.com/photo.php?fbid=10221429802727015&set=gm.3499791356777204&type=3 Sent from my iPhone > On Dec 6, 2020, at 1:54 PM, David Valentine <[log in to unmask]> wrote: > > Hi Tim, > > Your photos got stripped out--at least in my inbox. > > Dave > >> On Sun, Dec 6, 2020 at 11:21 AM Timothy Scarlett <[log in to unmask]> wrote: >> >> Hi all, >> >> I’m looking for comparative information about structures like these: >> file:///Users/scarlett/Desktop/129293577_10221429802767016_5288243268648673110_n.jpg >> <file:///Users/scarlett/Desktop/129293577_10221429802767016_5288243268648673110_n.jpg> >> >> This image shows a steel frame that I think held an "above the ground" >> target for aerial photography and survey. I can’t find any other examples >> of this type of artifact using google image searches— plenty of examples of >> control point targets for aerial survey, but no discussion of historic >> methods. A couple of these are scattered around in the woods here. >> >> Anybody know any examples? >> >> Thanks >> Tim Scarlett >> Michigan Tech >> >> Photo shared publicly by Kirstin Knaup Hensley. I will follow up with her >> if anyone sends more information. >> >> >> >> ######################################################################## >> >> Access the HISTARCH Home Page and Archives: >> https://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=HISTARCH >> >> Unsubscribe from the HISTARCH List: >> >> https://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?SUBED1=HISTARCH&A=1 >> >> This email list is powered by LISTSERV: >> https://www.lsoft.com/LISTSERV-powered.html >> >> ######################################################################## >> > > ######################################################################## > > Access the HISTARCH Home Page and Archives: > https://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=HISTARCH > > Unsubscribe from the HISTARCH List: > https://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?SUBED1=HISTARCH&A=1 > > This email list is powered by LISTSERV: > https://www.lsoft.com/LISTSERV-powered.html > > ######################################################################## ######################################################################## Access the HISTARCH Home Page and Archives: https://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=HISTARCH Unsubscribe from the HISTARCH List: https://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?SUBED1=HISTARCH&A=1 This email list is powered by LISTSERV: https://www.lsoft.com/LISTSERV-powered.html ########################################################################
