I've explained elsewhere why I believe these sets put Giant at forming around 1961/62 and not the '59 or earlier, of some sources, and the two-colour screen-print card is evocative of that age, whatever the date! Folding back on itself to fully enclose the rim of the blister between a card 'sandwich'.
There are dotted lines on the reverse indicating where you should go digging with knife or scissors to obtain the contents . . . now of course, I would just cut carefully round the base of the blister with a scalpel, but then I'm a vaguely intelligent adult! However, back then the 'blister pack' was a newish concept, especially in this sealed form, even Giant used staples only, through the blister, on some of their simpler/unfolded sets, while heat sealing the blister to the card was still a year or two away - requiring the added expense of blister-contoured hot-iron stamps.
Seven mounted Romans and two four-horsed, non-articulated chariots make up those contents, with two 'foot figures' as chariot crews; these plug to the floor of the chariot.
The chariots; the plug (chariot floor) and hole (figure base) attachment is clearly visible on the archer (ex-Britains pose), and the other vehicle has an ex-Marx sentry pose as it's 'rider/driver'. The chariot is based on the Marx Ben Hur Playset design, but reduced in size and greatly simplified.Note that each chariot has matching horses, which are standard Giant 'Smoothies' (as I call them) and 99-times out of a hundred get a contrasting coloured wrap-around detailing fret, you do occasionally see them with same colour frets, but they don't look 'right'! When you find the on feebleBay they are usually hideously overpriced for what are quite common, both as Giant and as any one of several clones, to which (the clones) you can add two-horse-team sets, and articulated versions which pivot at the back of the drawbar/centre pole.
The cavalry; A very disappointing figure/pose mix here with five of the diminutive blobs which pass for a spearman, and one each of the other two figures, however the horse selection is quite good with a fair mix of black, white and two shades of brown, so swings and roundabouts I feel! Again they are pretty standard Smoothies, but which sub-variant remains unclear . . . but then I haven't listen them all yet! Looking at the brown one on the middle, they are the ['GIANT' to the left of a smaller 'HONG' over 'KONG' with no idiot 'R'-mark] type! Crew and Chariot marks can't be determined.But they may have additional marks along the sides of the cavity? So I can't be 100% - things in blisters are harder to investigate than loose examples, but we will look at the Smoothie properly one day, with a view to boring you to death!
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But is it Giant?
Yes! Yes-yes-yes, without a shadow of a doubt, absolutely, assuredly, positively and only Giant! But - bought in the UK, in 1963, not in the US - God forgive the carbon-footprint* on these cheap, ephemeral rack-toys!
*1961? Coal or oil-fired tramp-steamer from Hong Kong to the West Coast, diesel locomotive (or Kenworth/Peterbuilt!) across the breadth of the US to New York, then another steamer to the UK, with more vehicle movements from Ipswich, Tilbury, Bristol or Liverpool? It's staggering really!