Blackfriars PO is now 'showing' on google maps, this evening...despite the 'server error' earlier on...anyway, what else is 'in the area' then?...go figure:

https://www.google.com/maps/place/Blackfriars+Post+Office/@51.5044231,-0.1028309,3a,37.5y,296.13h,1t/data=!3m8!1e1!3m6!1sAF1QipP0DIy4avxSc4q4xvFcXTdG4HhaijIEpdSZ3gw_!2e10!3e11!6shttps:%2F%2Flh5.googleusercontent.com%2Fp%2FAF1QipP0DIy4avxSc4q4xvFcXTdG4HhaijIEpdSZ3gw_%3Dw203-h100-k-no-pi-6.6776004-ya195.89824-ro1.3810004-fo100!7i5376!8i2688!4m5!3m4!1s0x487604aff76ac541:0xabe3377f775853d1!8m2!3d51.5047139!4d-0.1047249

"a crossbow" replies MI5 ONLINE....you mean that is what they had wanted the following image to signify?.

 

and the target?...go figure: