The 1 on the right is US Mirro example but I suspect this type cook set looks familiar world wide. I don't know nor do i explore the origin or earliest examples (of this type). There most certainly could be earlier examples than those I touch on (c. '70s). The two examples at a glance and with a very close look with both in-hand, these are the same. Anecdotally, I recall these kits (unpainted & olive) were common in my circles in the 70s. **More later. --------------------------------------- I'll begin re the JAPAN example on the left above (i've not seen in-box example). JAPAN c1972 Olive Two Man Cook set, 8 pcs.: 1 1/4 qt pot (5c) *painted, 6 1/2 x 2 1/2" -marked JAPAN 72 11. *bottom not painted. 1 qt pan (4c) painted, 7 x 2" -not marked (or painted over) 2 bowls 2c, 6 1/4 x 1 1/4" -marked JAPAN 72 12 2 cups, green plastic 1c -marked made in JAPAN 1 pot gripper / pot lifter -marked JAPAN 1 plastic strap (faux brown leather) FYI I also have a "JAPAN 73 8" Two Man kit that the pot, pan & bowls are an exact match to the '72 example above except it just so happens, my '73 is not painted. Also re: the 1972, 73 JAPAN examples, **weighing the pot & pan, they're heavier (just barely) than the '77 Mirro. I attribute this to, in-general, earlier aluminum kit is more durable, slightly heavier/thicker etc. Another JAPAN offering: A more rare 3 man (upgrade) was also offered (example has "JAPAN 73 5" on pot): It has a bit of a mustard yellow "look" in image, I know for sure this was offered in OLIVE. How it differs from 2 man version..., the 3 man kit comes with: 3 cups & 3 bowls (vs 2). the 3rd bowl not shown in this image. a pan handle (vs gripper), clasps on each side (vs strap), and salt n pepper shaker (unconfirmed). My educated guess is the 3 man (not in-hand) uses the exact same pot & pan as the 2 man. The 3 man adds the side clasps (btw many addl pieces can easily fit in the 2 man or 3 man). For 3 man dims/sizes refer to 2 man & Mirro. There's more, please hold comments til the "--end--"