From ShaveWiki
Special Edition Gillette 195 Adjustable "Heavy"
Manufacturer: Gillette
Dates in Production: 1960
Type: DE, TTO, Adjustable 1-9
Weight: 3.2 oz (90 grams)
Description: An interesting variation of the standard 195 adjustable that was produced in limited quantities in 1960 and was not retailed. The hallmark is the adjustment dial location at the bottom of the handle, above the TTO knob. THere were several versions, including one with a dial of 9 clicks and one with a dial of 5. This is Gillette’s heaviest razor. It has very solid thick chrome plating. One of Gillette's best made razor, TTO and blade adjustment are smooth and accurate. On the inside: "PAT. NOS. ON PKG.", on the underside, top: "REG. U.S. PAT. OFF. | "date code with year and quarter" F-4 1960 4th quarter, underside, and bottom: "[Gillette diamond] MADE IN U.S.A."
Notes of Interest: Made only this one year very limited production. Was never retailed.
Notes of interest: The Gillette company labeled all the "Fatboy" editions as "195" as indicted on the outer shipper and instruction of quite a few batches. In several popular blog sites there is a trend to restrict the "195" description only to the unique model shown above, with the dial at the lower end of the handle.