Steve
Photo here
https://www.ebay.de/itm/x40-Holland-...YAAOSwoddabda7 clearly shows the code is QV, that is 19 Sq and not QJ.
Faenor
Photo here
https://www.ebay.de/itm/r40-Holland-....c100013.m1986 give us an ID P8439
According to Jim Halley P8439 was initially used by 234Sq (which fits what Gifts of War says). Then Halley says it went to 91Sq, but since Frank states P8439 was lost with 19Sq on 28.8.1941 (date fits with what the photo says), I think there is a misprint in Halley's (Air Britain's) booklet and 91Sq is in fact 19Sq.
Without being 100% sure of course, I would say we are looking at P8439 QV-X shot down by AA-fire 28.8.1941 and which landed on a Dutch Beach.
Cheers
Stig