Combat Engineer

The Combat Engineer (7571) was a 1967 release on a new illustrated card.  The helmet that came with this hard to find set is marked Hasbro Hong Kong, instead of the usual Japan.  The transit has a small sighting piece that is often missing.  There is one minor variation in sets; the top of the yoke that holds the transit (where the pins meet it) can be rounded or squared off

This is a very tough set to find on the card along with the Construction and Demolition sets.