↑ 154: Eiger Wired Hexagon #4: 19, 38 mm.

• Made in USA [ca. 1970].

↑ Set 370-371, 107: Eiger Hexagon #1, #3, #5

↑ 370: Eiger Hexagon #1: 9.5, 25 mm.

• Made in USA [ca. 1970].

↑ 371: Eiger Hexagon #3: 16, 34 mm.

• Made in USA [ca. 1970].

↑ 107: Eiger Hexagon #5: 24, 44 mm.

• Made in USA [ca. 1970].

I don't know the official name for these. They are similar to the first Chouinard Hexcentrics. Like those and unlike later Chouinard Hexcentrics, these are symmetric front-to-rear.

↑ Set 372-375: Eiger Irregular Hexagons #7–#10

• Made in USA [1970s].

↑ 372: Eiger Irregular Hexagon #7: 31, 43 mm.

• Made in USA [1970s].

↑ 373: Eiger Irregular Hexagon #8: 39, 55 mm.

• Made in USA [1970s].

↑ 374: Eiger Irregular Hexagon #9: 49, 69 mm.

• Made in USA [1970s].

↑ 375: Eiger Irregular Hexagon #10: 60, 84 mm.

• Made in USA [1970s].