Dating Murray Comics: The Fightin' Five and Blackhawk one-shots

Murray Comics' The Fightin' Five was published c.July 1982:

This issue carries a full-page ad for the Blackhawk one-shot "next month":

And sure enough the Blackhawk one-shot was published August 1982:

 

The date is verified by a copy with 11 written on the cover by the newsagent. August 1982 was the date for the last of the $0.95 cover priced 96 page Murrays - they were $0.99 from September 1982.

I note I have seen two copies of this issue with 9 written on the cover by the newsagent. This doesn't tally with the above dates. My guess is this 9 refers to the September 1982 one month shelf date, possibly due to the pending price rise. Just a guess.

Update 8 September 2023: The Fightin' Five cover was also used on IPC's  Battle Picture Library #312:

Kudos to Jeremy Macpherson for identifying this.