Gun-Fight at Midnight!: Rawhide Western Library #1 and Western Illustrated Stories #9

Rawhide Western Library #1 and Western Illustrated Stories #9 are identical, apart from the Keith Chatto covers. 

The first story in these issues is Gun-Fight at Midnight, a Two-Gun Kid story: 

This story originally appeared in Two Gun Kid #45:

The GCD indexes this story as Gunfight at Midnight - without the dash - as per the cover title of Two Gun Kid #45. I wondered whether the difference between the two was due to a later Marvel reprint, such as the version in The Mighty Marvel Western #24, but that version is different altogether:

This version may appear in another Australian reprint.

Presumably the original Marvel version is the one which appears in Horwitz's Two-Gun Kid #30, which also omits the dash on the cover title:

The ads on the rear covers of the two Page Publications digests are also virtually identical. They both advertise the Peter Hastings stamp collections, and the date codes on each are MPHO/1274. However, they differ slightly in the indicia information - on one, Page Publications is listed before the printer Rotary Colorprint, and vice versa. I've long been sceptical of the reliability of the  MPHO date codes - they appeared too generic and too often, as if they were long range end-of-year use-by dates rather than monthly periodical dates, and the difference in the indicia suggests to me they were not both printed at the same time. 

I also note the other difference is that one includes an incomplete P.P., date code reference on the coupon and the other doesn't. The P.P. date codes have been rather reliable indicators of dates. Now I'm wondering whether this is a transitional moment from one form to the other, alongside the change in indicia information. I don't have any firm conclusions yet - just musing on something which I need to delve into further.