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K&E 4088 Family of Slide Rules

The 4088-2 and 4088-3 slide rules were first released in the 1913 catalog. The two pictured below are identical to the ones shown in the catalog.

4088-2 & 4088-3 Pair with Column Cursors

Scale set #1 (1913-1921)

DF [ CF CIF C ] D
K A [ S T CI ] D L

4088-2 --- 8" Early column type cursor. No serial number. Prod. #71

4088-3 --- 10" Early column type cursor with magnifier. No serial number. Prod. #3

4088-3 --- 10" All glass cursor and metal cursor blocks. No serial number. Prod. #62.

4088-3 --- 10" All glass cursor and metal cursor blocks. No serial number. Prod. #562.

4088-2 --- 8" All glass cursor. No serial number. Prod. #74.

4088-2 --- 8" All glass cursor. No serial number with magnifier. Prod. #87.

4088-3 --- 10" All glass cursor. No serial number. Prod. #56

Scale set #2 (1922-1939)

DF [ CF CIF C ] D
K A [ B S T CI ] D L

4088-2 - 8" All glass cursor. No serial number. Prod. #38C

4088-5 - 20" Replacement improved cursor. Serial # 29077

4088-5 - 20" All glass cursor. Serial # 72158

4088-1 - 5" All glass cursor. Serial # 106261

4088-3 - 10" All glass cursor. Serial # 162843

4088-2 - 8" All glass cursor. Serial # 180236

4088-3 - 10" All glass cursor with corner ridges. Serial # 422532

4088-3 - 10" New improved cursor. Serial # 446002